Re: Java in RHEL 6.3 on z/VM
Philipp Kern wrote: David, am Fri, Mar 29, 2013 at 05:18:27PM + hast du folgendes geschrieben: Systemd, on the other hand. not so much. 8-( it's much easier to write snippets for than sysvinit. It does proper supervision that restarts services when they go down. So where's the problem? I know it's a heated topic, but still I hate to see unsourced comments such as this. The problem I have with systemd is principally the implementation. The tools I have been using on RHL and successors since I gave up on OS/2 now don't all work or don't work all the time or give me rude messages. I am referring here to ckkconfig and service commands. Whatever the new commands are, their names are unnecessarily long and obtuse, and I don't particularly want to do more than I could previously with service and chkconfig. And, for the most part, new sysadmins will have to learn both ways to do things for different releases of the same distribution. As for restarting failing daemons, I had a problematic Squid once, and a Debian system that randomly dropped the ADSL connexion (probably, it was the IAP dropping the connexion and Debian not recovering gracefully), both years ago and neither seems major now. Oh year, sometimes the kernel gets a little enthusiastic about killing random programs to fix out of memory problems. systemd's restarting of these might be good, it might make the problem worse. Either way, it's a bandaid. Better to teach the kernel better manners. Apart from restarting failing services, is systemd of much significance to users of zBoxes? Quick boots are nice, but only if one reboots often. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: Bad joke mobile app for System z
On 06/09/12 23:15, Gabe Goldberg wrote: Quick Reference mobile app for IBM System z http://www-03.ibm.com/systems/z/resources/mobileapp/ New Quick Reference for IBM System z mobile app Access critical System z information — from the convenience of your Smartphone The free Quick Reference for IBM System z mobile app, now available for Android, BlackBerry and iPhone, provides quick and easy access to the latest System z product information, success stories, social networks, and z experts. Key features: Latest product highlights, descriptions, and specifications Client success stories Automatic content updates Core product content available without connectivity Access to relevant social networks, venues, and z experts One-touch communication with IBM Links to more System z information on the Web Sign-up options for additional exciting updates via e-mail or SMS ...can't see it replace shelves/bookcases of manuals, though it's a bit more portable. Now, having looked at it, it's hard to know where to start. It's for Android, BlackBerry, iPhone -- so it wastes most iPad screen real estate. Much 1x size text is unreadable; at 2x it's blurry and cartoonish. Has buttons Products, Case Studies, Communities, Favorites, Contact Us. Click Products, What's New, "New and updated products" gets announcements from 7/11/2011, 7/12/2011, and 10/12/2011. Great for nostalgia, not so useful for current information. Click Communities, Experts, get one expert: Willie Favero. It seems an interesting idea done badly, then forgotten... I can understand the possible merit of a tool for comparing prices at the supermarket one's in with what prices are available elsewhere, the information is useful immediately. However, I wouldn't think anyone buys zGear so often or with so little thought. It's decades since I was involved with any of that sort of equipment, back then buying and selling such stuff was generally preceded by reevaluation of existing facilities, going round one more time to see whether a little more could be squeezed out of it, reviewing what we're doing today and what we might want to do tomorrow, considering alternatives, evaluating them and taking some of them for a test run and, eventually choosing something. I'm going through that sort of process myself at the moment, considering a tablet. I've been aware of them, now I'm updating my knowledge and evaluating alternatives. I don't see how a mobile app would help me buy computer equipment. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: Router/routing issues
On 06/07/12 22:10, Mark Pace wrote: Within Guest2 - the router - Yes misvpn:~ # sudo cat /proc/sys/net/ipv4/ip_forward 1 I prefer to sysctl to list this stuff, it's what you should use to change values and you can modify its config file to make changes permanent. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: Red Hat Indeed
On 07/05/12 08:14, Dave Roeser wrote: My Mom and many of her friends in Old Hickory TN (all in their late 70's early 80's) are in the Red Hat Societyso I know you are not making it up. I only get back there every 10 yrs or so (I am in Seattle) and in 2001 I gave them a couple of dozen of the Red Hat Linux bumper stickers and they put them on their cars. My Mom has been asked several times if she uses Linux. Dave /"in a world without gates, who needs windoze?"/ On 7/4/2012 3:43 PM, David Kreuter wrote: Happy 4th to all my U.S. brethren. Here in Canada it is a work day. I'm traveling to Ottawa this a.m. I start chatting with the lady next to me. She tells me she is just back from Las Vegas where she was attending a Red Hat conference. So naturally my ears picked up. Linux I say? She then picks up a bag, unties it ... and removes a hand made red hat with all sorts of veils and tassels and stuff... It looked like something you might where at graduation. apparently there is a red hat society throughout at least North America where they make ... ready for it? Red Hats. She has a monthly get together to do this and they have an annual conference. And for those of you who know (of) me ... I am not making this up! David Kreuter My sister has been one for years. She lives around here: http://maps.google.com.au/maps?num=100&hl=en&safe=active&biw=1397&bih=876&q=high+wycombe+western+australia&um=1&ie=UTF-8&hq=&hnear=0x2a32b8e0a82ececf:0x504f0b535df4650,High+Wycombe+WA&gl=au&sa=X&ei=Qub0T77gCueTiAf9w8jZBg&ved=0CA4Q8gEwAQ http://www.inmycommunity.com.au/groups/Red-Hat-Ladies/180/notice/Are-you-interested-in-joining-the-Red-Hat-Society/467/ -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: SLES11 SP1 - Have you seen this?
Lee Stewart wrote: Hi... I have a customer running SLES11 SP1 and a layer 2 Vswitch. When we did the initial install, all went well, and all the clones behaved as expected. They did another from scratch install the other day and it seemed to go well. But when they cloned it, they started to have network trouble, and it ended up that they couldn't have their new master Linux and a clone of that up at the same time -- even though they had different IPs. The problem turned out to be that for some reason the new master (and therefore it's clone) had a hardcoded MAC address (LLADDR=) in the network definition. So even though they had different IPs, they were trying to use the same MAC address. Removing the LLADDR= fixed the problem and both were assigned dynamic MAC addresses by the Vswitch. I had a similar problem in Windows XP which I deployed with virtualisation (I think Virtual PC as VirtualBox had other problems) and a virtual machine preinstalled. Everyone's virtual PC has the same MAC address. It worked, sort of, and took me a while to nail the problem. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: MIPS increase after SLES11 SP1 patches
Mark Post wrote: On 5/4/2012 at 03:17 AM, Rob van der Heij wrote: Yes, my experience too is that build requirements in the SLES packages are often incomplete. It probably works for SUSE because they probably build in a "almost everything" type of system. Not really. The automated build service uses a base set of RPMs for every instantiation of a build server, and then uses the requirements in the spec file to add more. I've used build.suse.com to create a number of packages, and in some cases I've wound up having to build a huge number of pre-requisite packages first. If anyone finds RPMs that are missing dependencies, whether for build or at run time, they should open a Bugzilla report against it. (The same goes for Red Hat if anyone has experienced the same thing there.) The other day installed a base Fedora 17 system, then tried a "yum groupinstall" for one of the desktop environments. It installed a lot of stuff, but not enough. Eventually, I decided is was all too difficult and started again, installing from scratch. I've done that sort of thing with Debian too, and it also sometimes fails to draw in all the packages needed to run. I've also had the converse problem, I don't use Evolution, don't want to, but removing it's a challenge. It's a while since I tried building stuff on RHEL-clone, but some of the build requirements for some packages aren't even part of RHEL. That, I think, is why CentOS6 was so late. Reading the GPL V2,and given that the source packages can be regarded as comprising documentation (which GPL V2 requires) on how to build stuff, I wonder whether RHL is GPL-compliant in all cases it should be. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: SSH don't close session on logout
On 05/04/12 05:13, Mauro Souza wrote: This is the sequence: me is a windows, I think linuxgw is some flavor of Unix (solaris, aix), I don't know and nobody knows), and strange_ssh are sles11sp2. I connect to linuxgw via putty, and from there I use ssh to strange_ssh. me > linuxgw --> strange_ssh winxp unix (?)sles11 putty ->ssh --> sshd Using "~." kills the connection between strange_ssh and linuxgw. I have verified that putty does not act on "~." - if it did, it would be the first session that was broken as putty gets the first chance. I would love to use Linux, but I am on a client location, I have no choice. I asked them to plug my notebook on their network, but you guys know the default answer. The Windows machine I had to use is Of course. In their position, unless it was a common requirement my answer would be the same. If it was a common requirement, I'd have a "public" network properly fenced off from sensitive areas. locked down. I cannot even install putty, so I had to use a portable version. We don't have admin rights, and almost every directory is read only. I suspected it might be locked down even if "yours," but there's always hope until its dashed. Linuxgw is pretty locked down too. Even our home folder is read only. /tmp is read only, we have no bash_history, know_hosts or anything. The only system we have full access is strange_ssh. And I am not sure we can run strace on linuxgw. I cannot use X Forwarding, and I cannot tunnel anything but port 22. I will be there again next Monday, and will try other things... Here's how to find what linuxgw is running. 05:21 [summer@penguin ~]$ uname Linux 05:21 [summer@penguin ~]$ uname -a Linux penguin 2.6.18-308.1.1.el5 #1 SMP Wed Mar 7 04:16:51 EST 2012 x86_64 x86_64 x86_64 GNU/Linux 05:21 [summer@penguin ~]$ If it's not linux, I don't know how to trace processes. lsof on strage_ssh might still provide useful info. Mauro http://mauro.limeiratem.com - registered Linux User: 294521 Scripture is both history, and a love letter from God. 2012/5/3 John Summerfield On 05/03/12 10:26, Mauro Souza wrote: I think the problem is not any background/foreground process... I had not started anything, it was only a clean boot, default services, default inittab... I just logged in by ssh, and it hangs about 20 seconds after I press enter on the exit command. I noticed that this behavior only happens when I log in as root. Logged in as oracle does exit as it should. Logged in as root I have to wait 20 seconds to ssh close the connection, or use the recently-discovered "~." escape sequence to kill it. Mauro http://mauro.limeiratem.com - registered Linux User: 294521 Scripture is both history, and a love letter from God. You said you're going to strange_ssh via "linuxgw." When you enter "~." you cut the session between "me" and "linuxgw," and the session between "linuxgw" and "strange_ssh" may remain open for some time. I assume that at "me" you are using ssh and not putty or kitty. The man page for ssh has a section headed "ESCAPE CHARACTERS" and you should read it. At "me" or "linuxgw" you can change the escape character, and this will allow you to choose and be sure of which session is hanging. It does sound to me like it is the one between "linuxgw" and "strange_ssh," but let's put that to the test. To investigate further, these commands may be helpful: strace - reports system calls made by the Program Under Test, in this case the ssh command. Note that strace can connect to running programs, I have used it to trace apache httpd, so you could also use it on sshd on strange_ssh or linuxgw. tcpdump - records and reports network traffic. You won't understand the traffic, it's all going to be encrypted, but it will show where and when the traffic flows. Can be run on any machine in the data path. lsof - shows open files and network connexions, and programs listening. netstat can provide similar information. Should be used anywhere you need that info, likely strange_ssh. If "me" is a Windows box, I'd counsel getting hold of Linux, it can be run perfectly well in virtualbox or similar, and if you can't get hold of SLED for it, OpenSUSE should be fairly familiar to you. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access in
Re: MIPS increase after SLES11 SP1 patches
On 05/03/12 12:48, Srivastava, Sagar wrote: Thanks to Brent and Barton for your reply, I was not successful in compiling PowerTOP in SLES11 (s390), probably sources need some tweaking since it is Intel platform centric. If anyone has compiled it successfully, I will be glad to know. See whether Debian has a package for it in s/390. If it has, that version, with patches, should compile for you I found the solution to my problem, though! Novell Bug #724164 was fixed in this patch update that we did, where 'logwatch' package was updated from logwatch-7.3.6-65.66.1 to logwatch-7.3.6-65.72.1. This is also used by LVM monitoring facility called dmraid and internally uses cron to run a job every minute and the job is intensive that it runs for 10 seconds. On an average it comes out to be 0.8% CPU per guest. Earlier this LVM monitoring facility was failing hence it did not use any CPU due to the above Bug in logwatch package. please notice description and comment #7 in below URL I found through our great Google, which was my problem too: https://bugzilla.novell.com/show_bug.cgi?id=724164 Have you noticed Great Google spies on you? -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: SSH don't close session on logout
On 05/03/12 10:26, Mauro Souza wrote: I think the problem is not any background/foreground process... I had not started anything, it was only a clean boot, default services, default inittab... I just logged in by ssh, and it hangs about 20 seconds after I press enter on the exit command. I noticed that this behavior only happens when I log in as root. Logged in as oracle does exit as it should. Logged in as root I have to wait 20 seconds to ssh close the connection, or use the recently-discovered "~." escape sequence to kill it. Mauro http://mauro.limeiratem.com - registered Linux User: 294521 Scripture is both history, and a love letter from God. You said you're going to strange_ssh via "linuxgw." When you enter "~." you cut the session between "me" and "linuxgw," and the session between "linuxgw" and "strange_ssh" may remain open for some time. I assume that at "me" you are using ssh and not putty or kitty. The man page for ssh has a section headed "ESCAPE CHARACTERS" and you should read it. At "me" or "linuxgw" you can change the escape character, and this will allow you to choose and be sure of which session is hanging. It does sound to me like it is the one between "linuxgw" and "strange_ssh," but let's put that to the test. To investigate further, these commands may be helpful: strace - reports system calls made by the Program Under Test, in this case the ssh command. Note that strace can connect to running programs, I have used it to trace apache httpd, so you could also use it on sshd on strange_ssh or linuxgw. tcpdump - records and reports network traffic. You won't understand the traffic, it's all going to be encrypted, but it will show where and when the traffic flows. Can be run on any machine in the data path. lsof - shows open files and network connexions, and programs listening. netstat can provide similar information. Should be used anywhere you need that info, likely strange_ssh. If "me" is a Windows box, I'd counsel getting hold of Linux, it can be run perfectly well in virtualbox or similar, and if you can't get hold of SLED for it, OpenSUSE should be fairly familiar to you. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: apache2 how to set envirenment vars for oracle client
On 04/17/12 23:19, Marco Bosisio wrote: Hi, I 'm facing this problem with apache2 running on SUSE10 SP4 zLinux. Marco When you reply to an email, use your email program's reply button and prune irrelevant material. When you want to write an email, as you just did, that is unrelated to what's gone before, use the write/compose button, or, in most email clients, click on the relevant email address. What you did can cause you problems because someone able and willing to help but uninterested in secret computer codes would not have seen your email. While you might have expunged all irrelevant information from the body, you left the following information that links your email to those that went before, and most email clients use this (or similar info) to group related messages together in a thread Note that the following para is one header, reformatted by my email client. References: <550260a6-1cf2-4edb-a61f-a67e03f86...@me.com> <4f8a548c.8070...@gabegold.com> <800mo75u2v8t7lu2praotu2vv2hjf86...@4ax.com> Every time I restart apache2, using the "service apache2 restart" command, the following variables are not set: -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: Rexx/Regina on Linux
On 04/20/12 04:19, Aria Bamdad wrote: Instead of using the queue command, why not write your message body to a temp file and then use something like this: cat /tmp/mymessage | mail -s "This is a subject line" scu...@ca.com or mail < Aria -Original Message- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Scully, William P Sent: Thursday, April 19, 2012 4:11 PM To: LINUX-390@VM.MARIST.EDU Subject: Rexx/Regina on Linux I'd like a Rexx exec on Linux to send an email. My first attempt at this is: #!/usr/bin/regina Queue 'This Is My Subject' Queue 'This is the body of the email text.' Queue '.' /* exit mail's input mode */ 'mail scu...@ca.com' Exit The pre-queued responses for the mail command don't help and mail ends up prompting me interactively. Does anyone know how I might queue replies to the Linux mail command? Thanks in advance for any advice on this topic. -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/ -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/ -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: SSH don't close session on logout
On 04/26/12 21:55, Dean, David (I/S) wrote: Excellent, it worked, thank you. Has Mauro's problem been fixed? ssh won't close the session if there's a live TCP/IP session running, and "wsftpd&" would have that effect, ssh would still be maintaining the connection for STD*. using the screen command might help in some cases, it would for "wsftpd&". -Original Message- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Mark Post Sent: Wednesday, April 25, 2012 2:39 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: SSH don't close session on logout On 4/25/2012 at 02:24 PM, "Dean, David (I/S)" wrote: I run in to it consistently when I start up our ftp server with vsftpd&. Always wondered if& had something to do with it. It could very well. Does it happen if you use the vendor provided interface(s) to start it? - rcvsftpd start - /etc/init.d/vsftpd start - service vsftpd start Mark Post -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/ - Please see the following link for the BlueCross BlueShield of Tennessee E-mail disclaimer: http://www.bcbst.com/email_disclaimer.shtm -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/ -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: The old is new again - Not IBM related, but I hope interesting
On 05/02/12 20:00, McKown, John wrote: http://www.phoronix.com/scan.php?page=article&item=plugable_multiseat_kick&num=1 This is a USB device which can plug into a normal PC running Linux (Fedora 17 is mentioned). You then connect a DisplayLink monitor, USB keyboard and mouse to the device. And you have a multi-user system on a single PC. Not a "server" PC with other PCs connected as "clients", but just one single PC. Reminds me of what could be done with MP/M-80 (the multiuser version of CP/M-80), except back then it was a serial (RS-232?) connected keyboard/display. Or, maybe, an S/360 with a 2260(?) or 3272(?). The old 486 or Pentium I used to run OS/2 could do that with any old Linux distro you could install* on its HDD. Look up the Linux Terminal Server project. And I do believe your virtual Z could host it * or netboot, and you can netboot from a floppy. For the 2260s devices were channel-attached using a 2848 controller. See an interesting article here: http://en.wikipedia.org/wiki/IBM_2260 For more remote users, there were 2741 printer-keyboards, slow, noisy but regarded as printing well. Think of a dancing golf ball. The 3270 family were the S/370 successor (but used on late S/360s), and there were different models of displays attachable to various controllers. The 3272 was a local controller, the 3271 a remote controller attaching via modems and a 2703 or equivalent bysync controller. The 3275 was a display with a built in remote controller. We used to have an enquiry program that used a bunch of 2260 displays, and one of my early tasks was to debug a program intended to connect emulated 3270 displays over a network implementing the Australian Public Service (APS) protocol. It may have been fortunate that the network implementation lacked the bandwidth needed to get enquiry traffic through in a timely fashion. John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * john.mck...@healthmarkets.com * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/ -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: LDAP
Brad Hinson wrote:
Hi Erik,
I'm not an LDAP expert, but I know it's changed a lot since RHEL 5. Check
these links:
https://access.redhat.com/kb/docs/DOC-66593
http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/ch-Directory_Servers.html#s2-ldap-pam
16.1.5.1. Migrating Old Authentication Information to LDAP Format
The migrationtools package provides a set of shell and Perl scripts to
help you migrate authentication information into an LDAP format. To
install this package, type the following at a shell prompt:
~]# yum install migrationtools
This will install the scripts to the /usr/share/migrationtools/
directory. Once installed, edit the
/usr/share/migrationtools/migrate_common.ph file and change the
following lines to reflect the correct domain, for example:
http://proton.pathname.com/fhs/
Chapter 4. The /usr Hierarchy
Purpose
/usr is the second major section of the filesystem. /usr is shareable,
read-only data. That means that /usr should be shareable between various
FHS-compliant hosts and must not be written to. Any information that is
host-specific or varies with time is stored elsewhere.
That is the current version, there is a draft of a new version, but this
does not change.
What happened to FHS compliance?
If that doesn't have what you need, I recommend opening a support call. There
are LDAP specialists who can probably answer that one very quickly.
-Brad
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On Feb 3, 2012, at 9:32 AM, Eric K. Dickinson wrote:
I reworded and resent it so it makes more sense.
On 02/03/2012 09:23 AM, Bauer, Bobby (NIH/CIT) [E] wrote:
Greek to me but hopefully somebody who is LDAP/AD knowledgeable will respond.
Bobby Bauer
Center for Information Technology
National Institutes of Health
Bethesda, MD 20892-5628
301-594-7474
-Original Message-
From: Dickinson, Eric (CIT)
Sent: Friday, February 03, 2012 9:18 AM
To: LINUX-390@VM.MARIST.EDU
Subject: LDAP
Re worded so it makes sense{8^)
I have been trying to configure REHL6 on a z114 to authenticate to an Active
Directory Domain Controller with LDAP.
What I was hoping was to be directed to a document or procedure to help me
along.
I think I have it all working but the TLS.
The manuals are very terse. I was also emailed the certificate and the books
are all about downloading the certificate. I am not clear exactly where to put
it or name it.
Thank you!
eric
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Re: bogomips
Theodore Rodriguez-Bell wrote: On our systems, one can get a decent idea of where one is more than half the time: If (bogomips ~= 14037) Processor = z196 && OS = SLES 11 Elif (bogomips ~= 11061) Processor = z10 && OS = SLES 11 or RHEL 6 Elif (bogomips ~= 2800) Processor = z196 && OS = SLES 10 Elif (bogomips ~= 2100) Processor = z10 && OS = SLES 10 Else # Too much running elsewhere; can't tell (~= means "approximately equal to", for reasonable values of approximately. We only have a few RHEL 6 servers, all on our last z10.) If you didn't believe the "bogo" in the name before, the SLES 10/SLES 11 difference ought to convince you. I have a quad-core Intel box here. CPU frequency varies second to second, and one CPU seems to have significantly more bogomips than the others. So there! john@Boomer:~$ bm.perl&cat /proc/cpuinfo | egrep -i Mhz\|bogom| sort -u [1] 32313 bogomips: 5316.76 bogomips: 5333.51 bogomips: 5333.52 bogomips: 5333.53 bogomips: 5333.54 bogomips: 5333.55 bogomips: 5333.82 bogomips: 5400.31 cpu MHz : 1596.000 john@Boomer:~$ cat /proc/cpuinfo | egrep -i Mhz\|bogom| sort -u bogomips: 5316.76 bogomips: 5333.51 bogomips: 5333.52 bogomips: 5333.53 bogomips: 5333.54 bogomips: 5333.55 bogomips: 5333.82 bogomips: 5400.31 cpu MHz : 1596.000 cpu MHz : 2661.000 john@Boomer:~$ -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: map in use
Victor Echavarry Diaz wrote: I want to know what is this and how to solve. Creating multipath targets20017380009c50121: map in use 20017380009c50120: map in use Thanks, Did you ask google? It's my first port of call whenever I want to know the meaning of some obscure question. Mostly, somebody else has already asked. Víctor Echavarry System Programmer Technology Systems & Operations Division EVERTEC - CONFIDENTIALITY NOTE: This email communication and its attachments contain information that are proprietary and confidential to EVERTEC, INC., its affiliates or its clients. They may not be disclosed, distributed, used, copied or modified in any way without EVERTEC, Inc.’s authorization. If you are not the intended recipient of this email, you are not an authorized person. Please delete it and notify the sender immediately. EVERTEC, Inc. and its affiliates do not assume any liability for damages resulting from emails that have been sent or altered without their consent. Moreover, EVERTEC, Inc. has taken precautions to safeguard its email communications, but cannot assure that such is the case and disclaim any responsibility attributable thereto. -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/ -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: Using RHEL5.5 Apache with MSIE browser / NTLM
Donald Russell wrote: I have an Apache web server running on zLinux RHEL 5.5, and MS Windows users who log into a domain before they can even get the browser. Once there however, I'd like to pick up their domain user id without having to explicitly prompt for it. (i.e. avoid some sort of log in page) I realize the security is not terribly strong, it's more of a conveneince thing... security has already been taken care of at this point. It looks like I could implement the four-way NTLM at the application level (provide a PHP class to do the heavy lifting) but I was looking for something I could configure in Apache, like a directory statement in httpd.conf that says something like "access to this directory requires an ntlm-authenticated user, and then Apache/php would make the userid available via the $_SERVER super-global... or something similar. Is there a (convenient) way to do this? Or other suggestions? Is this what you want? http://www.google.com.au/search?ie=UTF-8&oe=utf-8&q=apache+ntlm+auth Thanks, -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/ -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: Virtualization with the Best TCO?
Mark Post wrote: On 8/24/2010 at 03:15 PM, "Graves, Aaron" wrote: How about a z/VM zLinux response to this? http://www.computerworld.com/pdfs/RedHat_Enterprise_Linux_has_Best_TCO.pdf If I were to say what I really think about this, I would most likely be perceived as bashing a competitor. I don't want to go there, so I'm going to try really hard to stay out of this particular discussion. Brad, my apologies for saying this much. Bear in mind that RH is targetting (mostly) Windows users on ia32/amd-64 systems. I wouldn't expect too much difference between SLES and RHEL on those kinds of hardware. Both RH's and Novell's users can do things those on Zeds cannot, most notably run Windows guests. And, quite a few times here; I've seen questions about this or that package that is shipped prebuilt as binaries for Linux (but only for intellish systems). Now, if someone wants to take aim at Linux on Intellish (or Power or Sparc if you wish) vs Linux on Zeds, I'm here to watch! -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: Shared root and shutdown
Michael MacIsaac wrote: Leland, For you "shared root crazies" out there, how did you get /etc to unmount ... Or perhaps a better question is "How did you get /etc to *mount*?" As I recall the install programs will not allow /etc to be a mounted file system. This makes some sense as the file system table (fstab) is in /etc/ - so there's a chicken-and-egg problem with /etc being specified as a file system in /etc. A little while ago, I wanted to make a system with / on nfs, with the ability to run multiple copies of it. Sorta like what you're talking about. I finished up front-ending the startup scripts to mount various places, including /etc. with tmpfs and then. where appropriate, populating the filesystem. Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: CRON
John Summerfield wrote: Mark Pace wrote: Is there an easy way to make cron not send me an email every time it runs one of my jobs? I have one job that runs every 15 mins, and as you may imagine that generates a lot of mail. Or is there a way clean up an mbox without manually doing it? man 5 crontab The version of cron I have can be persuaded to not send email A good alternative, in my view, is to write a filter with one's email client to file these emails into a folder which one generally ignores. It's there if needed. I might also mention that I read a lot (just about all) of system-generated email with alpine (Aternatively-Licenced pine) which lets me deal with the emails much faster than thunderbird and other GUIs can handle it. Dealing with those emails takes less than a second, mostly the email fits on one page. And, I read on a Linux virtual console. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: CRON
Mark Pace wrote: Is there an easy way to make cron not send me an email every time it runs one of my jobs? I have one job that runs every 15 mins, and as you may imagine that generates a lot of mail. Or is there a way clean up an mbox without manually doing it? man 5 crontab The version of cron I have can be persuaded to not send email A good alternative, in my view, is to write a filter with one's email client to file these emails into a folder which one generally ignores. It's there if needed. -- Mark D Pace Senior Systems Engineer Mainline Information Systems -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/ -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: Reducing Linux virtual machine size
Tom Duerbusch wrote:
Hi Ray.
I tried your script on some of my images. Works fine, except when Oracle is
involved.
linux62:~ # ps -eo pmem | awk '{pmem += $1};END {print "pmem ="pmem"%"}';
pmem =1347.1%
I do have a lot of swap blocks allocated. This is due to a batch type run,
that is run off hours. During the day, when users are on, we swap very little.
So if this does include swap pages, I don't think the script would give me what
I need, during normal processing. Do you agree? Or am off track here?
Thanks
Tom Duerbusch
THD Consulting
"Mrohs, Ray" 7/23/2010 1:45 PM >>>
Start up all your Linux procs and then run this little script.
#! /bin/sh
ps -eo pmem | awk '{pmem += $1}; END {print "pmem = "pmem"%"}';
It will give you a ballpark percentage of current memory utilization.
I tuned some Apache/ftp servers down to 100M with no ill effects.
To (maybe) alleviate the problem with oracle, add a sort step:
ps -eo pmem,cmd | sort -u -k2 | awk '{pmem += $1}; END {print "pmem =
"pmem"%"}';
This sorts by the second (and subsequent) key and drops duplicates. Be
aware it has its own problem, if you have lots of different copies of a
program (bash maybe) with the same commandline arguments, it will be
counted once.
You could also experiment with start time and any other sort keys that
seem attractive.
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Re: FW: CNET: IBM names Firefox its default browser
John Campbell wrote: McKown, John wrote: http://news.cnet.com/8301-30685_3-20009387-264.html When I was an IBMer I was one of those using the Linux "Client For E-Business" build (IMHO very well assembled on top of RHEL4 WS) which, given the CIO's decree that all internal web-based applications MUST be "Browser Agnostic" (unlike my experiences as Verizon and elsewhere) it made the use of Firefox to be "no problem". Firefox is common to at least *three* platforms-- Windows, Linux and MacOS X-- so this actually cuts costs in terms of Quality Assurance Add in the BSDs and (almost certainly) Solaris.. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: Compiling ingres 9.3 on SLES 10 sp3
tim.simp...@dundeecity.gov.uk wrote: Hello, I have never posted to the list before so sorry for any style errors I make. We have been running the CA proprietary version Ingres 2.6 for many years on SLES8 31 bit on Zvm 5.3 We are in the process of moving to Zvm 6.1 and would like to go to SLES10 64bit It would appear that CA no longer provide Zvm binaries So I have downloaded the open source ingres 9.3 code, in an attempt to build this version myself, but it does not have any architecture definitions in it for S390 or S390x I suggest you first build it on IA32 or AMD-64, which is probably where all the action is. Hopefully, what ever works there will also work on Zeds. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: GNOME
Thang Pham wrote: Yes, it was a firewall problem. If ever a firewall prevents you from doing something, but you can use ssh, there is port forwarding to help: Read the man page until you understand thisL ssh -L 8080:fred.local:80 fred.example.com -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: Ten years of Linux on the mainframe
Ray Mansell wrote: You joined seven months earlier than I did - so between us we have more than 7 decades of VM experience. or 37 years repeated? -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For more information on Linux on System z, visit http://wiki.linuxvm.org/
Re: Question from a UNIX newbie.
Roger Evans wrote: And the biggest reason: there are maybe millions of programs and scripts that are written to assume that fopen DOESN'T search a path variable, and might break if the behavior were changed. Users are also 'programmed' to assume that commands will look where they're told to look and nowhere else. It's bad enough having to 'reprogram' when switching from an MSDOS command line (which has '.' implicitly in its PATH) and linux, which doesn't. You could even be able to make a case for dropping this behavior on the part of exec and ld, and forcing the user/programmer to specify where the files are. But that would break a lot of things, too. Roger On Thu, 2010-03-18 at 09:36 +0100, Rob van der Heij wrote: On Thu, Mar 18, 2010 at 5:39 AM, William D Carroll wrote: Biggest reason I can think against it (just devil's advocate) is performance if you had a search path that fopen/fdopen used then for every call of fopen/fdopen they would search the path (or could potentially search they path) this could cause excessive overhead on the lpar. think of the extra IO that would be occurring performing searches "When other things equal, performance rules. Otherwise often too" :-) I think you're right that the cost of searching other directories is is to be avoided. And just like with $PATH there is a trojan horse around the corner... The idea smells like the CMS "file mode extension" where you want to fake things and allow the program to think the file is somewhere else. With CMS mini disks you have no other options but copying the files when the program was not prepared to look on other file modes. The mechanisms in Unix are a bit different. I don't think I've seen a program that took a file name as an argument but could not handle a path. But if it really happens you do tricks with links. Really just command line. I see an analogy with "address command" religion in CMS. When you write a program in Linux you should not rely on the path but state which program you run and what files you use. I would not like to see "sshd" pick up a different config file because I installed some Java stuff that injected some directories (at the start) of my $DATAPATH environment variable. The PATH environment variable satisfies a pretty similar to that provided by concatenated system/job/set/task libraries on MVS. One has a defined way of specifying "my program is in one of these locations." Some programs, java, perl, python and many more use a defined environment variable to locate their libraries. Applying a similar scheme to just any open sounds to me like a disaster waiting to happen. Imagine a user doing this, as root: cd /tmp echo someting | bash if open searched some path that happened to include /bin -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Rexx and Expect
Frank M. Ramaekers wrote: HmmmI've done 'expect' in a shell script and I've done REXX, but haven't tried to combine the two.Just a gut feeling, I think you have some problems with that, but let me know how it goes! expect is an extension to TCL, itself a scripting language. I expect you could write an expect script script and incorporate that into your rexx script as you would any external (to rexx) command. perl has an expect module, if you don't like tcl (and I'd not blame you for that), maybe you could do whatever in perl. Frank M. Ramaekers Jr. -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Scully, William P Sent: Wednesday, March 10, 2010 1:45 PM To: LINUX-390@VM.MARIST.EDU Subject: Rexx and Expect Forgive me in advance as I think I should know the answer to this. But I don't. Please educate me. Is it possible to use Rexx as the scripting language for Expect? Perhaps via "address"? I'm thinking it might be akin to how Rexx on z/VM can "speak" to can the editor with "address xedit". -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Used MP3000
Mike At HammockTree wrote: I will point out that there are different install packages for OpenSUSE and RHEL. I'm not sure exactly what the differences are, but apparently there are some differences, so there may well be differences in other distributions that zPDT may be sensitive to. I'm sure that an expereinced Linux person would be able to work out the differences, but I suspect that most zOS developers will find it much more cost effective to use one of the recommended systems (hardware and software) or even one of the prebuilt systems with additional usability tools, such as the ones from ITC (hint... hint...) Mike I could probably hack it into shape, and the cost _might_ be acceptable but with the licence in its present shape I'm forbidden to try. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: OOM-Killer shut down SSh
David Kreuter wrote: My experience is with the effects of the OOM killer. Perhaps with Linux on a desktop it is ok Not really, in my experience it's rarely the guilty party that gets clobbered, so the problem can persist for some time, with performance degrading all the while. Not everything on a desktop is critical, and what is important is in the eye of the beholder. I say, be generous with RAM, it's cheap and certainly cheaper than lost time, either of the user or of the person delegated to investigate. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Used MP3000
Frank M. Ramaekers wrote: CentOS is the *free* version of RHEL. I presume you're directing that to me; I well understand that CentOS is, I maintain several systems (mostly my own) running it, Additionally, I've used several releases of Fedora, of RHL before it, and on occasion I've used OpenSUSE too - it's my deceased Thinkpad. And for good measure, I've also run betas of recent releases of RHEL. Like Mike, I expect it would work on any current distro, provided the owner is prepared to do some work - running openSUSE packages through Alien is one thing, getting the resulting deb to actually work is another. I would expect the release of the Linux kernel and versions of libraries on the system would be key, more than the actual distros. Scripts are relatively easy to fold into shape should they depend on SUSE standards. However, I was thinking more of licences: IBM says this hardware, and that software is supported, Frank M. Ramaekers Jr. Systems Programmer MCP, MCP+I, MCSE & RHCE American Income Life Insurance Co. Phone: (254)761-6649 1200 Wooded Acres Dr.Fax: (254)741-5777 Waco, Texas 76710 -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of John Summerfield Sent: Monday, January 18, 2010 5:27 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: Used MP3000 Mike At HammockTree wrote: It's called "zPDT" (Syetem z Personal Development Tool) from IBM. We (ITC) use it in our system/product called the uPDT (Ultimate PDT). See www.p390.com/updt.htm for more info. It looks very nice, though it seems it might not work with the very nice HP laptop I bought last week I'm sure that those in the Hercules crowd who want to run licenced IBM operating systems might find the USB thing an attractive way to do so. On their choice of hardware, of course. Since "opensuse" gets a mention, I don't suppose IBM is too concerned about the quality of the underlying host OS, so users' choice from the major distros should be equally acceptable. I don't understand the reference to Red Hat, there is no Red Hat Linux - Fedora is the nearest to opensuse, and RHEL isn't in the same league. Mike Hammock ITC - Original Message - From: "McKown, John" To: Sent: Friday, January 15, 2010 2:39 PM Subject: Re: Used MP3000 -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Alan Altmark Sent: Friday, January 15, 2010 1:29 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: Used MP3000 On Friday, 01/15/2010 at 11:27 EST, Chris Cox wrote: If only IBM would allow ISV's to put something real on Hercules. It's like IBM doesn't want anyone to learn stuff anymore... not that I mind Linux of course. Eh? System z ISVs have other development tools at their disposal. Alan Altmark z/VM Development IBM Endicott I know of two. One is an account (z/OS under z/VM?) on a center in Dallas. The other is for PWD, but I forget the name. It replaces Flex-ES in that it allows running z OSes on an Intel PC. -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * (817)-961-6183 cell john.mck...@healthmarkets.com * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Used MP3000
Mike At HammockTree wrote: It's called "zPDT" (Syetem z Personal Development Tool) from IBM. We (ITC) use it in our system/product called the uPDT (Ultimate PDT). See www.p390.com/updt.htm for more info. It looks very nice, though it seems it might not work with the very nice HP laptop I bought last week I'm sure that those in the Hercules crowd who want to run licenced IBM operating systems might find the USB thing an attractive way to do so. On their choice of hardware, of course. Since "opensuse" gets a mention, I don't suppose IBM is too concerned about the quality of the underlying host OS, so users' choice from the major distros should be equally acceptable. I don't understand the reference to Red Hat, there is no Red Hat Linux - Fedora is the nearest to opensuse, and RHEL isn't in the same league. Mike Hammock ITC - Original Message - From: "McKown, John" To: Sent: Friday, January 15, 2010 2:39 PM Subject: Re: Used MP3000 -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Alan Altmark Sent: Friday, January 15, 2010 1:29 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: Used MP3000 On Friday, 01/15/2010 at 11:27 EST, Chris Cox wrote: > If only IBM would allow ISV's to put something real on Hercules. > It's like IBM doesn't want anyone to learn stuff anymore... not > that I mind Linux of course. Eh? System z ISVs have other development tools at their disposal. Alan Altmark z/VM Development IBM Endicott I know of two. One is an account (z/OS under z/VM?) on a center in Dallas. The other is for PWD, but I forget the name. It replaces Flex-ES in that it allows running z OSes on an Intel PC. -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * (817)-961-6183 cell john.mck...@healthmarkets.com * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: C++ Cross-Compiling on zLinux for z/OS
Dennis Schaffer wrote: Hi, My shop is interested in using zLinux to cross-compile C++ programs which will be executed on z/OS. The purpose would be to make use of cheaper IFL cycles instead of the more expensive CP cycles. Are there options for "gcc" or are cross-compilers available which would run on zLinux and generate object code or modules which could be executed under z/OS? gcc can be built to cross-compile, google should give some clues. If gcc on Linux-390 can target z/OS then I would expect gcc on an AMD-64-compatible system[1] should be able to do so too, and maybe you have even cheaper CPU cycles. [1] Or just about anything else. Does anyone have experience w/ these alternatives, if any? Thanks in advance for your responses. Dennis Schaffer -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: gcc 4.x.x on SLES 9
oscar.rodrig...@barclayscapital.com wrote:
P
- Original Message -
From: Linux on 390 Port
To: LINUX-390@VM.MARIST.EDU
Sent: Sat Jan 09 13:02:00 2010
Subject: Re: gcc 4.x.x on SLES 9
Building GCC is not difficult, but is time consuming. (MOST of the
time is simply letting the build run while you go off and have a cup
of coffee ... or a four course meal ... and dessert ... and take in a
movie.) You will, of course, need a fully functional development
environment before you can [re]build GCC.
The original poster proposes a solution to a problem, but doesn't
describe the problem.
For many purposes, gcc on something later will do as well. You could
even contemplate gcc on opensuse on an amd-64 system.
Generally, software developed on a peecee running OpenSUSE today could
be expected to run on future SLES or SLED with minimal fuss and bother.
Circumstances where this doesn't apply are fairly obvious - those that
are sensitive to the presence of specific real or virtual hardware (I'll
include all of VM that a guest can see here).
All that, and what others have said, I'd look at spec files new and old
for clues about how your new gcc should be built, but handle it outside
of package management. I'm not confident about how rpms for two
different releases of gcc could be made to live together, while building
it outside of rpm is a doddle. Just aim it for somewhere somewhat
private - /usr/local/gcc4.4 or, if Harry's the only person using it,
~/harry/gcc4.4 - and then have those who need it change their PATH to suite.
Later, removing it is as simple as "rm -rf /usr/local/gcc4.4"
You would need to update /etc/ld.so.conf or add a file to
/etc/ld.so.conf.d/ (I'm looking at RHEL-clone, SLE{S,D} might differ.
When it works, it is mostly unattended. When it doesn't work, you
will have to take the time and figure out what broke. (Maybe you
simply need to upgrade some other support utility. Who knows?)
YES, you can have two versions of GCC on the same system. No problem!
What you must do is have them in different locations. I use two
schemes for building GCC, as follows, BOTH of which place GCC apart
from the usual locations. Both of them will automagically download
the GCC source for you.
*** Using "CSCRATCH" to build GCC ***
I often use this in-place build scheme which includes GCC (and
BINUTILS, which you may also want to upgrade). It happens that the
scheme I call CSCRATCH places GCC (and BINUTILS) under /opt/gcc rather
than under /usr, so your old compiler would still be available. (And
would in fact be the default.) Be aware that this scheme will replace
most other packages IN PLACE. The fact that it relocates GCC is a
happy coincidence that I won't elaborate on today. It is presently
doing GCC 4.3.2. If you have a machine, which already has a compiler,
you are welcome to try ...
mkdir /tmp/csc
cd /tmp/csc
wget http://www.casita.net/pub/csc/makefile
make gcc.mk
make gcc.src
make gcc.cfg
make gcc.exe
sudo make gcc.ins
Then to run the new compiler, set it first in command search ...
PATH=/opt/gcc/bin:$PATH ; export PATH
You may want to do the same for BINUTILS which is at the 2.18.50.0.6
level. (And also lands safely under /opt/gcc.)
*** Using "/usr/opt" to build GCC ***
I also often use a non-intrusive scheme for building packages,
including GCC, which lets you isolate things from the operating
system. (So it does not break your box out of DPKG or RPM
management.) Someone at Rice University came up with the basic idea
years ago, and I have come to rely on it heavily. I found the build
logic for GCC 4.3.2 for this scheme and uploaded it to the web.
"/usr/opt" by design keeps everything AWAY FROM the operating system,
so here too your old compiler would still be available. (And would
again still be the default.) There are more steps (than with
CSCRATCH), but this is a much more open-ended solution.
mkdir /tmp/gcc-4.3.2
cd /tmp/gcc-4.3.2
wget http://www.casita.net/pub/gcc/gcc-4.3.2.mak
cp -p gcc-4.3.2.mak makefile
wget http://www.casita.net/pub/setup.sh
cp -p setup.sh setup
chmod a+rx setup
make source
make config
make
sudo mkdir -m 1777 /usr/opt
make install
./setup
Again, to run the new compiler, make it first in your command search ...
PATH=/usr/opt/gcc/bin:$PATH ; export PATH
You may want to do the same with "binutils-2.18.50.0.9".
I do not know how well a home-grown GCC will behave w/r/t your mixed
32-bit and 64-bit environment. Personally, I would use one of the
above methods and then rigorously test the stuff built by the new GCC.
(Most of the libraries are outside of compiler space.) Rigorous
testing is standard operating procedure, yes? :-)
-- R; <><
On Fri, Jan 8, 2010 at 11:26, rui wrote:
Hi all,
I am looking for gcc 4.2 onwards on sles9 x86_64. Can I get a
Re: /usr/local -or- /local
Richard Troth wrote: Thanks for all the feedback. I've seen cases where, for example, a sub-dir of /proc is a mount point, and the mount point gets created before /proc is actually mounted. (Some script somewhere must be doing this, because the 'mount' command executable does not.) So a missing /usr/local (mount point) doesn't necessarily ensure that the two cannot get out of sequence. It doesn't matter all that much (to me) whether mounting /usr/local ahead of /usr can be prevented. The cascade of mounts is inelegant. So the question is simply if anyone sees problems with /usr/local being a sym-link to /local ... up one level. Doesn't sound like anyone thinks that is really a problem. I think you are trying to solve a problem that does not exist. I disagree that nesting mounts is inelegant, and your hack belongs to the realm of Crude Hacks(tm). During system initialisation, expect filesystems to be mounted with the mount command thus: mount -a Expect that when this happens that the root filesystem is already mounted. According to fstab(5), the approved way to read fstab in a program is with getmntent(3). Since the documentation for that function does not state otherwise, expect that entries are returned in the order in which they appear. Since that is the standard way of programmatically reading /etc/fstab, it is reasonable to expect the mount command to do that. So, the solution to your problem is to order entries in fstab in the order in which you want them mounted, that is, /usr before /usr/local. Doing this in non-standard ways goes to increasing maintenance costs (you actually have to do extra work) and extra training costs (you have to explain to new hires why you do things in such a strange way). By all means put what I have said before blindly implementing it, I would call that "insurance." I've got another one. Will make that another subject for proper threading. -- R; <>< On Tue, Jan 5, 2010 at 13:55, Richard Troth wrote: folks -- Does anyone see or imagine or know of any negative impact from having /usr/local be a symbolic link to /local? One of my teammates is asking. I have personally endorsed this particular hack. It lets us have /usr and /local each be in their own filesystem and yet not have a mount fight. That is, if /usr/local and /usr were each unique filesystems, you could wind up with bad things like one FS hiding the other. (Rare, but possible.) So instead, I am in the habit of moving /usr/local to /local and letting there be a sym-link /usr/local. What then is the risk? Novell? RedHat? What do y'all say? Is there a problem with this? Thanks. -- R; <>< -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Senior WebSphere Consultant
Jose Munoz wrote: Hi, I still working on WebSphere Application Server for z/OS and Windows platforms as Senior WebSphere Consultant since 9 years ago, my project finish January 2010 and I will be available February, 1st 2010. I have experience on zSeries for more than 25 years. Jose, please do not interpret this is as critical of you. I don't recall the community attitude to "I want a job" posts, but this is not a suitable forum for seeking employees. Posting job-vacant ads here can cause grief, including - so others have said - termination to readers whose employers might suppose they're looking for a new job. The focus of this community is using Linux on IBM mainframes. Contributing here might work towards establishing a reputation, and you could get some ideas about where you'd like to work in the future, but I'd hesitate to take it further than that. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Rejected posting to LINUX-390@VM.MARIST.EDU
Rob van der Heij wrote: On Thu, Dec 24, 2009 at 12:38 AM, John Summerfield wrote: I had it happen a few days ago, and I've seen in in the past. I assumed that the listserv got confused, or someone restored a mail queue that had already been processed, or something. Yes, it happens a few days after the post. It's not uncommon for MTA's to try delivery for a few days before giving up and apparently return the item to the sender. I fear we need Harry or Martha to identify which subscriber does this... Rob It's recurred, and I have some evidence. Email from me left here: Received: from js.id.au (dsl-58-6-192-22.wa.westnet.com.au [58.6.192.22]) by smtp-inbound4.marist.edu with ESMTP id CA9RyR7qUlL9v5f5 for ; Mon, 28 Dec 2009 18:13:22 -0500 (EST) That's the first Received: header verifiable outside my site. It spent a few minutes bouncing around Marist and friends: Return-Path: <> Received: from MARMAIL2 (NJE origin smtp...@marist) by VM.MARIST.EDU (LMail V1.2b/1.8b) with BSMTP id 4604; Tue, 29 Dec 2009 18:18:22 -0500 Received: from smtp-inbound5.marist.edu [148.100.49.28] by VMMAIL2.MARIST.EDU (IBM VM SMTP Level 540) via TCP with ESMTP ; Tue, 29 Dec 2009 Then it got wrapped up and returned. This is the first header from the message returning it: Received: from VM.MARIST.EDU (NJE origin lists...@marist) by VM.MARIST.EDU (LMail V1.2b/1.8b) with BSMTP id 4608; Tue, 29 Dec 2009 18:18:25 -0500 and arrived here: Received: from smtp-outbound3.marist.edu (smtp-outbound3.marist.edu [148.100.49.24]) by ns.demo.lan (Postfix) with ESMTP id A2E4AC2C016 for -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: PROP-like action routines for linux syslog ?
McKown, John wrote: Which syslog daemon are you running (sorry, no z/Linux here). Old-style syslog, syslog-ng, or rsyslogd? They are different in their capabilities. One thing which should work on all of them is to make your own daemon which monitors the appropriate syslog file in the filesystem (you must tell the syslog to write to this file). You could do this something like: tail -f /var/log/log-file-with-messages | myprocessing-program Probably, configuring syslogd to write to a pipe is easier. Start the pipe reader first. Apart from things others have mentioned, pop-before-smtp is a perl script that reads log files in real time and does things when a regex matches. It copes with logs being rotated. As its name suggests, it's mail-related, but one could hack it to death and reincarnation. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Rejected posting to LINUX-390@VM.MARIST.EDU
Rob van der Heij wrote: On Mon, Dec 21, 2009 at 2:58 PM, Frank M. Ramaekers wrote: I don't know why I keep getting these. �I've never double posted anything. �On, Saturday, I received 6 of these and 2 on Friday. My guess is that a (former) subscriber has a misbehaving mail agent that now returns the mail to listserv. I had it happen a few days ago, and I've seen in in the past. I assumed that the listserv got confused, or someone restored a mail queue that had already been processed, or something. If it were someone else's misbehaving mail service, I'd expect to see something of the kind on other lists I'm on, most higher-volume than this, but I don't recall it. Or we're getting very old and forget that we already posted ;-) Have I already posted this? Can't remember.. -- Cheers Santa -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: OT: out-of-office notices
Shane Ginnane wrote: Well that didn't take long to be disregarded. Shane ... They used to be such fun! We'd discuss how easy it is to not send them to the list, how silly folk who can't manage it are etc etc. One time Sally Ditto was out of her office for a while, and we were rather taken, in addition to the other points, her name and its resemblance to a well-known DOS utility. We were still discussing it a week or two later when she returned. Merry Christmas Shane and the rest! 36 here I hear. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Completely off topic
Andrej wrote: 2009/12/16 John Summerfield : OK, I have to admit that I don't see what's amusing... care to illuminate? Q What hardware is TogaRouter running on? A http://www.amazon.com/TRENDnet-TEW-652BRP-Version-Wireless-Router/dp/B001DHLC3S Running Linux, of course. It's no Deep Blue, but it will do the job on most tournament players. Heh ... that's state of the art, isn't it? It would have been amusing if it were running z/VM & Linux on IFL ... ;) The other one running TogaII could, using Hercules, if IBM would allow it:-) Now, if someone has a Z10 with free time, could join freechess running TogaII as, maybe, BigBlueToga -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Completely off topic
Fuzzy Logic wrote: OK, I have to admit that I don't see what's amusing... care to illuminate? Q What hardware is TogaRouter running on? A http://www.amazon.com/TRENDnet-TEW-652BRP-Version-Wireless-Router/dp/B001DHLC3S Running Linux, of course. It's no Deep Blue, but it will do the job on most tournament players. Fuzzy On Tue, Dec 15, 2009 at 3:22 AM, John Summerfield wrote: telnet freechess.org 5000 set seek 0 set open 0 finger TogaII finger TogaRouter quit Maybe it's just me, but I find it amusing. -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Completely off topic
telnet freechess.org 5000 set seek 0 set open 0 finger TogaII finger TogaRouter quit Maybe it's just me, but I find it amusing. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: concatenating input files with named pipes
Bishop, Peter wrote: Hi again, I'm moving ahead a little bit and have done some basic tests with tapes but now have something I don't understand. I'm trying to "concatenate" two tapes into one named pipe, and then read the pipe, hoping thereby to read the two tapes at once (trying to emulate the z/OS JCL concatenation concept). Here's my logic, which is not working as I'll explain in a minute. My thinking is that I can write to the pipe sequentially and read it sequentially, but it appears not to work that way. pe...@sydvs002:~> sudo dd if=/dev/rtibm0 of=pipe & pe...@sydvs002:~> sudo dd if=/dev/rtibm1 of=pipe & pe...@sydvs002:~> sudo dd if=pipe of=packages & Yuck! sudo bash -c\ '(sudo dd if=/dev/rtibm0;dd if=/dev/rtibm1 ) | dd of=packages' You can punctuate it differently: sudo bash -c\ '(sudo dd if=/dev/rtibm0;dd if=/dev/rtibm1 )' | dd of=packages and extend it sudo bash -c\ '(sudo dd if=/dev/rtibm0;dd if=/dev/rtibm1 )' \ | ssh other.example.com dd of=packages and cat will work as well as dd. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: WWBD - One large VM LPAR or multiple smaller ones?
Staller, Allan wrote: The issue is not technical, it is a business issue. The traditional method of z/VM maint is to bring up the new release as a guest under the current release. Migrate all of the guests on the current release to the new release, and shut down the "old release". This will promote the "new release" to be the true hypervisor. This obviates the technical necessity for multiple LPARs. However, if that LPAR needs to be shut down for any reason (Disrputive microcode is the only thing I can think of at the moment), you have lost all applications. You haven't stated if there are multiple CEC's involved or just LPARs on a single CEC. Presumably if you're updating the slushware, you have to shut down everything anyway, the question is whether it's all at once or staged. Unless (and I don't know this) you can migrate the running system to different hardware (real or virtual) without IPL. We could almost do this in the 70s on the 3168 (one could take out half an MP, but only one half, not one at a time). -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux software development question
McKown, John wrote: -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Christian Paro Sent: Wednesday, December 02, 2009 11:24 AM To: LINUX-390@VM.MARIST.EDU Subject: Re: Linux software development question If this is an application you wrote, why not just have it write to stdout and then redirect its output at the shell to wherever you want to put it. In other words, instead of: `app in1 in2 in3 output.file` you'd have `app in1 in2 in3 > output.file` (to output to a file named "output.file") or `app in1 in2 in3 1>&2` (to output to stderr) Good question. I guess because the program is really writing out binary data, not something that should be directed to the screen. Which, of course, begs the question: "then why have a way to write it to stderr?" I can see writing it to stdout so that you could pipe it into something else, without an intermediate "temporary" file. But my main question was about standard conventions and is there one for using stderr in a parm list where a file name is normally used and required. As a - is used for either stdin or stdout, whichever applies in the context. Is there a web site which detail "standard conventions"? C was originally written for programming on Unix, and since Linux so resembles Unix, it works well there. The way popular languages such as C, C++ and Java work just the way they're expected to do in Linux. The standard conventions are pretty much what your programming documentation says to do. If you want to write binary data to a file, stdout and stderr are poor choices, some time someone will get a face full on their screen, possibly making the screen hard to read. Single hyphens for arguments seems pretty much the Unix way, double hyphens the GNU way. However, not all programs use hyphens at all, dd for example. Assuming I still have your attention, please, where you allow an argument such as "--pkg" you also accept "--package" because abbreviations obvious to you might not be so to others, especially those from very different cultures such as India. Where you expect "--all-packages" also accept "--all_packages." I have lots of trouble remembering which separator is used in particular cases. getopt is an excellent package (once one understands the documentation) for sorting out the commandline. However, I don't know that it's available for Java. Personally, I like commandlines that seem somewhat english with no special punctuation: copy file (-|source) to (-|target) by ftp -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: SIGILL problem on s390x
rui wrote: I am now thinking of becoming a machine level programmer :) Thanks Christian and others for your valuable feedback and helping me solve the problem. Very valuable learning, to inspect the actual instructions for me. This code was in place for Linux only, I have now gotten round it for s390. This is one of the times when having programmed in assembly language is useful:-) When trying to solve these kinds of problems, it's useful to know that the CPU is trying to digest, and what it's capable of (the reason I asked about the model). Most (I think) CPUs advance the program counter after fetching the instruction. An obvious exception is when the instruction can't be accessed (program check 4 or 5). When the CPU has suffered acute indigestion, backtracking can be a bit of guesswork. First try, depending on the particular error, is to look at the immediate prior bytes to see what might be instructions that might have given rise to the existing PC value and the error. In the case of addressing errors, it helps to understand how branches are taken. Eons ago when I learned this stuff, a program check at one of these addresses: x'48' x'50' x'4800' x'5000' generally meant a program had tried to read or write an unopened file and there was usually a message about a missing DD card. R14 contained the return address and R1 the address of the relevant DCB. _I_ generally use R12 as my base register in my assembler programs, and one time a missing DD lead to an unconditional branch on R12 at one of those addresses. The result, a S322 abend (used all CPU time) and a greater time limit lead to a S322 abend. Umm. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Shared documents in Samba
Richard Troth wrote: Berry -- Last I knew, SMB service from z/OS was in fact just SAMBA. Given that there would have to be some "churn" between the latest and greatest SAMBA and what you have on z/OS, it would be an older and stabler version. You might find that a newer release of SAMBA solves your problem. A quick Google search for SAMBA and Excel did not teach me anything, but you may have better results if you are familiar with the keywords which fit this particular Excel function. I would be interested to know if z/OS SMB was actually not SAMBA under the covers. When last I was an OS/390 user, there was a job running called "lanserver" which I assumed was ported from OS/2. I got involved because the folk near where I worked wanted to transfer data from Windows NT to OS/390 and filesharing, they said, was dog-slow. I didn't put that to the test, I just something else. The standard ftp client. Pushed the OS/390 ftpd over a couple of times before I found how to specify MVS filenames from the Windows client. I think Samba then was around 1.4, I looked at it on OS/2, mainly so I could provide information in my OS/2 pages. It wasn't until later I switched to Linux. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: SIGILL problem on s390x
rui wrote: Hi all, This is my first message to this list and I am having a strange problem on s390x system. uname -a Linux suse9 2.6.5-7.97-s390x #1 SMP Fri Jul 2 14:21:59 UTC 2004 s390x s390x s390x GNU/Linux I am building my software on this system with these compiler/linker options as 32bit build. CC="g++ -m31" COPTS_LINUX_OS390="-L. -Wall -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -D_THREAD_SAFE -D_REENTRANT -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED -D_POSIX_C_SOURCE=199506L" LOPTS_LINUX_OS390="-L. -Wall -lpthread -lm -lnsl -lrt -ldl -lcrypt -L/usr/X11R6/lib" The build is fine but when I execute my software and for a certain operation i receive SIGILL, which I don't seem to understand -- it happens at a start of a c++ based constructor in which the only difference from the rest of the application is that stl is used. I can't seem to get to the bottom of this, are there any compile/link flags, which I am not using correctly or is there something else. The code is built as 32bit on hp, solaris, suse linux and redhat linux without any problem and works fine, even on 64 bit version of redhat linux. Can anybody help me out with this, please? What model of CPU are you using? cat /proc/cpuinfo Can you use gdb to find just what the instruction is that it's failing on and post the hex code to the list? Just for giggles (and if you have the time), fire up Hercules on a PC and try on that. I don't think that you can actually choose the CPU it emulates (I've not used it for some time, I used to specify "model=3168" and that ran Linux just fine), but it's a different processor. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: assembler and LINUX
Chase, John wrote: -Original Message- From: Linux on 390 Port On Behalf Of David Boyes [ snip ] 3) Find an old PC and install the distribution you want to use on it. Use that to experiment with the environment. At today's prices, probably "better" to just build a new one. ++ I was researching the wares on offer at one of the local PC shops, this one going under the hammer. I finished up not going, but on offer was an intel mobo with preattached Atom processor. Normally retails here for just over the $AU100. Add 2GB DDR2 RAM, a (special) case, a disk (laptop disk?) and Bob's your uncle. CPU power consumption? This is the greedy one of the Atom line at 8W. Not 80, just 8. Thinks no fan, green-friendly, reasonable performance. Probably would run Hercules well enough for small-scale zAssembly work. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Java plugin for firefox on z/Linux
Mark Post wrote: On 11/13/2009 at 2:58 AM, Andrew Avramenko wrote: Hello, We want to organize terminal server on system z. One of preprequisites is java plugin for firefox. It seems that there is no such plugin in ibm java. Can You recommend some workaround or may be You know about plans to release this plugin? The only workaround I'm aware of is to use Konqueror as the browser. You could have a peek at the CentOS distro. I think they have packaged the OS java for CentOS5. If you're talking RHEL5, it's probably just a compile away. SUSE10 might be a little more, but still not hard. Earlier releases of either might be a greater challenge. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: M$oft patents "sudo"
bruce.light...@its.ms.gov wrote: I am aiming for 1+1=10 all your logic gates are mine !! I'll take these: 1 OR 1 = 1 1 OR 0 = 1 0 OR 1 = 1 0 OR 0 = 0 -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: zSeries OS licenses, Was: Re: ch-0.0.0e21 (TX in ch_action_txretry): Busy
Patrick Spinler wrote: Certainly, in my shop, several of our major initiatives started out as skunk works projects. I can't imagine it's all that different elsewhere. Like Linux/370? http://www.linas.org/linux/i370/i370-bigfoot.html Older Hardware. The s390 port only runs on the newest generation of hardware. Very few sites have this hardware. The i370 port supports an older instruction set, and thus opens the door to owners of older systems. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: zSeries OS licenses, Was: Re: ch-0.0.0e21 (TX in ch_action_txretry): Busy
Patrick Spinler wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Alan Altmark wrote: Bottom line, zPDT is available only to software vendors (ISVs). So, end result, there's no inexpensive desktop viable evaluation, training or hobbiest option available for non ISVs, period. - From the amount of traffic in this this thread, it sounds like I'm not the only person who'd appreciate having such a thing available. How can we customers request such a thing from IBM? If enough customers ask, I'd hope IBM management would at least consider making such available. At one point I was running MVS 3.08 under Hercules. I'd have loved to use something more recent, to refresh and update my skills. I quite liked writing programs in assembler, but there's little point to writing for S/370, no matter how well I did it, it would not lead to employment or software sales. I couldn't even get the JES2 exits I wrote working, they were written for a PP JES2. As for Linux, there's not that much difference between Linux on a current AMD-64-compatible system and Linux on a Zed - especially an emulated Zed -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Where does "games" come from?
Leslie Turriff wrote: On Tuesday 03 November 2009 19:42:12 John Summerfield wrote: I think removal of accounts, as opposed to disabling them, is not something to undertake lightly. It might be that data there could be required for legal purposes - recently in a public company in Australia was reported to have embezzled a few million dollars. Enough that, when the money was found, the company's share price doubled. Probably, the user's files reflected her activities. Illegal activites aside, there may be notes, saved emails and the like stored there and nowhere else that may reflect agreements made and which someone else might need to know about after they've left. All of your comments are correct, and all of the installations where I have worked have checklists and procedures for handling the removal of such accounts, which include the identification and either removal or reassignment of related files before the account is removed; but these do not cover the case of an unidentified account which is owned by no identifiable entity and has no apparent use except to provide a possible weakness in the system's The accounts in question and their purposes have been identified. security merely by existing. (One may believe that since it is a "nologin" account, etc., that there is no chance that in the future some hacker might find a way to exploit its existence, but history has shown that such beliefs are not safe ones.) The policy of most enterprises that unused accounts If someone can change a nologin account to a login account, you're already screwed. And, that someone can also create new accounts. should not exist on the system unless they can be justified as serving a business purpose is valid for accounts such as games as well as for accounts defined by the system administrators. If the only purpose for the games account is to collect high-score numbers for accounts where games are used, it has no purpose on a business server, and it should not be included in such a distribution. It is hard for me to believe that an account with such a minimal purpose cannot be excluded without causing a cascade of problems in the rest of the system, and it seems to me that the distributors of SLES and RHEL should have excluded them long ago. I think that the suggestion of seeking assurance from the vendor that the removal of these accounts poses no problem is sound. I would also recommend asking the vendor that no unnecessary system accounts be created. Any local action is but a crudish hack, and the problem will recur, either immediately as Marcy found out, or later when installing from vendor media, and nor will these hacks solve the matter for other users. I also think it sound to bring these accounts to the auditors' attention (since in this case they seem not to have noticed yet) and discussing with them what should be done, what the alternatives and risks are. It seems to me most here have a problem with the name. Here are some other names I have on my RHEL-clone: news operator gopher rpm gdm sabayon tomcat shutdown halt Those last two actually have a login shell that doesn't immediately log you off, instead halt would shut down the system. Some of the others also have a working login shell. If the games account represents a security problem, then so do those. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Where does "games" come from?
Edmund R. MacKenty wrote: On Tuesday 03 November 2009 11:16, Jack Woehr wrote: Edmund R. MacKenty wrote: . I don't think the UID/GID can be re-used, as your vendor controls their assignments for system accounts and useradd(8) will not assign UID/GID values below 500 That number-below-which is controlled by the contents of /etc/login.defs I believe, which is an editable text file, not a hard limit. Correct. But in order for the scenario you described to occur, one of the following must happen: 1) A superuser edits /etc/login.defs and sets SYSTEM_USER_MIN to zero or some other very low value, or 2) A superuser runs "useradd -r -u 40 cracker" and gives that account to a plain user. I don't know what sparked that comment, but in case you think system accounts have special privileges, they do not, except for UID=0.Essentially, system accounts are not user accounts, and new accounts are user accounts by default. The system can be configured to give special access to specific resources through use of UIDs and GIDs- members of the dialout group on a system I maintain can use serial ports because they're owned by group dialout and the group permissions allow that,but that applies equally whether a process is a daemon process with a system account, or some user. Similarly, sudo can be configured to give some accounts or groups special privilege (typically, the ability to run stuff as root), but again, its behaviour is the same whether the process using it's a system daemon or an ordinary user. In fact, I use it to allow Apache to modify firewall rules, and I use it to allow administrator users to do their stuff. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Where does "games" come from?
Edmund R. MacKenty wrote: On Tuesday 03 November 2009 11:48, Marcy Cortes wrote: No one has actually answered Paul's question about why it has to exist. I'm curious about that too for my own edification. Just because its always been there and things *might* expect it isn't a very good reason in my opinion. I'll take a swat at that one: It doesn't *have* to exist, but some packages will attempt to install files owned by "games". That's OK, you'll end up with some files owned by UID 12. More likely they will be owned by root. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Where does "games" come from?
Jack Woehr wrote: Alan Altmark wrote: Marcy's question wasn't unreasonable and neither is the policy to remove unnecessary account ... But to implement the policy, *someone* has to be the arbiter of "necessary", and I don't think it should be the system that's being audited! In the specific instance, most estimable Alan, your general guidance is wrong. Marcy was asking for help in deleting accounts she did not know the purpose of, /and/ the system /is/ the arbiter in that these system accounts own system files which are orphaned if the system accounts are deleted. In a worst-case scenario (that's what security planning is about, right?) 1. ftp system files are orphaned by deleting the account 2. a user account re-using the uid number for the vanished ftp account is accidentally created 3. Joe User gets control of FTP. A user account will not be created with a defunct system account's UID. What is more likely is that a new user account might get the UID of a removed user account and so win some orphaned files. I don't know whether it's defined behaviour, but on RHL and successors, if I add a new user account (as I do) in kickstart with a specific UID (as I do), then subsequent new accounts get ever-increasing UIDs. Given that I remember when OS/VS and VSAM were new, and how mind-bogglingly large VSAM files could be (4 Gbytes for those less senior), I will not assume UIDs will never wrap again. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: TCPDUMP
Ron Wells wrote: Not recv'ing / seeing packets being sent from Linux box..only see them coming inbound?? Where can I start looking Going through VSWITCH where OSA-Gig card is set z/VM5.4 SLES 10 SP2 Linux agfzxt02 2.6.16.60-0.42.4-default #1 SMP Fri Aug 14 14:33:26 UTC 2009 s390x s390x s390x GNU/Linux tcpdump command: tcpdump -p -i eth0 -s 0 -vv -w /root/appwork01.lcap "src port not 22 or dst port not 22" When people start combining AND and NOT I have to think, and I don't like thinking. But I wonder whether you mean and rather than or. I'd use port not 22 Something like this: tcpdump -i eth0 -A -s host terry and not port 22 which doesn't trace ssh activity. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Where does "games" come from?
Alan Altmark wrote: In a Unix system, having a process to ensure that you *don't* orphan files when deleting an account would seem to be de riguer. If any file exists to which said uid has privileges, then why would you delete the account until you clean up the files? I'm not a Unix sysadmin, but I presume that there are admin packages that handle this sort of thing for you. When you discover that the admin tools is about to delete /sys/bin/important, you might think twice about it and instead put that user on the "necessary" list. Users' files do not, by default, get deleted when the account is removed. The ownership of a file is reflected in two numbers, and those are mapped to names through /etc/passwd and /etc/group (and their replacements in LDAP etc). Removal of accounts removes the mapping, but not the files. If you use a centralised authentication store, such as LDAP or RACF or AD, then removing a user account could leave orphaned files all over the place. I think removal of accounts, as opposed to disabling them, is not something to undertake lightly. It might be that data there could be required for legal purposes - recently in a public company in Australia was reported to have embezzled a few million dollars. Enough that, when the money was found, the company's share price doubled. Probably, the user's files reflected her activities. Illegal activites aside, there may be notes, saved emails and the like stored there and nowhere else that may reflect agreements made and which someone else might need to know about after they've left. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Where does "games" come from?
Jack Woehr wrote: Edmund R. MacKenty wrote: . I don't think the UID/GID can be re-used, as your vendor controls their assignments for system accounts and useradd(8) will not assign UID/GID values below 500 That number-below-which is controlled by the contents of /etc/login.defs I believe, which is an editable text file, not a hard limit. and the default limit varies, I've read that the traditional Unix limit is 1000, and that's what Debian uses. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Where does "games" come from?
Edmund R. MacKenty wrote: removes a headache for you. I don't think the UID/GID can be re-used, as your vendor controls their assignments for system accounts and useradd(8) will not assign UID/GID values below 500 unless you explicity ask for it with the -r option, which you're not going to ever use, right? So even if there are files owned by UID 12 after you delete "games", no one else will get to own them. I don't know about RHEL and SLES, in the ordinary course of events, but it certainly can happen in Debian. I said "in the ordinary course of events" to exclude reference to third-party software. If I provide some kind of server software, installation may well involve creating a _system_ account. That is perfectly consistent with how Linux vendors installed their standard daemons - postgresql, apache, postfix et al all have their own system accounts. It's the vendors' choice whether those accounts are part of the standard set, or created when and if required. A third-party vendor would create them when their software is installed, and if you have removed some of the standard set, then yes the UIDs and GUIDs can be reused. And, if you ever have need to move a disk from one system to another, where the mappings o UID/GIDs to names differs, you may have problems. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Where does "games" come from?
Jack Woehr wrote: something you shouldn't do and have no reason to do? Delete the contents of /usr/games if you want, but don't delete the user id. And leave uucp and ftp userids alone on pain of You'll Be Sorry Someday And Not Know Why. Better, delete the packages that own files in $(locate \*/games ) but don't delete those directories, they will return. In RHEL they're part of the filesystem package. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Where does "games" come from?
Scott Rohling wrote: Interesting -- then it isn't getting recreated from /etc/shadow or something... Maybe there is some option that keeps maintenance from doing this -- but failing that, I'd consider this behavior a security issue. If the maintenance wants to complain (as it would on zVM for example if FTPSERVE was missing) that it can't apply the maintenance or something is missing -- that's fine. But actually creating accounts isn't... That would invalidate many security scans I know about at various customers... So - not much help from me, other than if 'games' is a required system account - I guess the joke's on us ;-) Maybe someone else has insight on ways to keep this from happening... If you're not actually using /etc/passwd etc for authentication for normal users, this probably wins: chattr +i /etc/passwd -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Where does "games" come from?
Marcy Cortes wrote: But Jack, "Review and remove unnecessary accounts" "unix" Google it. I did. With quotes in place, no hits. Without quotes, a bit over half a million. One used the term without defining it. Several say to remove unneeded _user_ accounts. Anyone security / audit weenie who *doesn't* put that in the policy is probably in need of the beginner book or a new job. One can argue all they want with the auditors about the philosophy and correctness of leaving them in, but in reality, the policy is still broken. And some of us need our jobs. I would wish to understand what they think they are gaining. A scientist who just accepts conventional wisdom is likely to soon be a former scientist. It's not about being difficult, but rather trying to do what is correct, and where one is not better than the other, then making the choice that makes less work. Low-numbered (where "low" depends on implementation) UIDs and GIDs are for system accounts and groups. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Where does "games" come from?
Scott Rohling wrote: So? How does this explain why they reappear if removed? It doesn't. In your position, assuming I had chosen to remove those accounts, I would then look for actions taken by updates. This command should give clues as to when it happened. \ls -l --time=ctime I somewhat agree with Jack, I wouldn't be keen on their removal. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Where does "games" come from?
Marcy Cortes wrote: I keep getting rid of this userid /etc/passwd, and something puts it back. SLES 10. How do I make it stop doing that? Also uucp and ftp. Bad bad bad. Consider them documentation. I their shells are set to "/sbin/nologin" or similar, nobody's going to login with them. Root can su to them, but if you don't trust root, you know what you are:-) I the accounts are locked (and I'm sure they are), then nobody else can su to them. The document and (in a sense) reserve the UID and GUID their files would have if they had any (and in some systems, games does). "games" is used to store scores in pissing contests. This is on RHEL-clone: [r...@bobtail ~]# touch /tmp/zink [r...@bobtail ~]# chown . /tmp/zink [r...@bobtail ~]# ls -l /tmp/zink -rw-r--r-- 1 0 Nov 3 10:31 /tmp/zink [r...@bobtail ~]# Having those names in /etc/passwd has no implications about ownership of any files that may be created. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: cron jobs run twice when when time changes
Aria Bamdad wrote: Hi, I have the following crontab file on my SLES10 SP2 systems: SHELL=/bin/sh PATH=/usr/bin:/usr/sbin:/sbin:/bin:/usr/lib/news/bin MAILTO=root # # check scripts in cron.hourly, cron.daily, cron.weekly, and cron.monthly # -*/15 * * * * root test -x /usr/lib/cron/run-crons && /usr/lib/cron/run-crons >/dev/null 2>&1 59 * * * * root rm -f /var/spool/cron/lastrun/cron.hourly 10 0 * * * root rm -f /var/spool/cron/lastrun/cron.daily 29 4 * * 6 root rm -f /var/spool/cron/lastrun/cron.weekly 44 4 1 * * root rm -f /var/spool/cron/lastrun/cron.monthly This Sunday, when we move the time back one hour, the scripts in our daily group ran twice. This is caused by the run-crons script that runs every 15 minutes. In our case, the daily script ran at 12:10AM on 11/1, then again at 11:10PM on 11/1, and finally at 12:10AM on 11/2. Searching online, I see various bugs in run-crons causing this type of behavior on other distributions. Did anyone else see this behavior over the weekend? I'm sure they did, it's the obvious behaviour and, without documentation to the contrary, it's what I would expect. If you can avoid running cron jobs at the times affected by daylight savings changeovers, that would help. Otherwise, crond needs to be taught how to use UTC instead of local time. On the basis that current behaviour might be depended on by someone (don't ask me why!), the choice of time might be configurable, and conceivably, people might want crond to use some time that is neither local nor UTC, and maybe for individual cron jobs. This last point applies to me, I want to regularly check a website when trading is active, and it operates in another time zone. I I could say, in my crontab, TZ=Australia/Sydney then I could track its trading hours more easily. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: emulating a z/OS DDNAME dataset concatenation in Linux
Rob van der Heij wrote: On Mon, Nov 2, 2009 at 5:02 AM, BISHOP, Peter wrote: To John M - yes, I was thinking in "z/OS" terms, where a single open of the DDNAME is sufficient for all the datasets in that DDNAME. To David, Ed and John S - the annoying thing about pipes here is that they incur extra I/O for the "cat" command, and since these files are very large (approx 20GB daily) this extra I/O will be very costly, probably excessively so here. Looks like I'm out of luck here, more thinking required. What extra I/O do you mean? When "cat" has multiple arguments, it will open one file after the other, read them to end-of-file and write the output to stdout. You can pipe that into your processing. If it's your own application, you could make the application process a list of file names. As far as I know this is similar to how MVS does extents. You would have extra I/O when you had to compose the input file on disk by appending all your input files. But in a lot of cases you can make the program use stdin and take the data from the pipe. Rob I expect Peter's referring to writing and reading the pipes. In OS, the data goes from disk to buffers to program. Here, it would be going disk to buffers to cat to buffers(?) to pipe to buffers(?) to program. I think Peter should measure the performance, but I'm inclined to think he's right. When I suggested it, I didn't expect it to be "as good." If there's some useful preprocessing that could be done before the program, he could replace cat with a program that does that processing and reduce the overhead. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Math Error
Scully, William P wrote:
I've reported this to the vendor but I found this error a bit
astonishing:
# ksh -vx poo.ksh
date=0605
+ date=0605
((mm=${date}/100))
+ ((mm=0605/100))
echo ${mm}
+ echo 3
3
exit 0
+ exit 0
I get this result on SLES 10.
I just spotted this because someone's hijacked the thread, talking about
something irrelevant to it.
I generally use bc for arithmetic these days:
10:51 [sum...@bobtail ~]$ echo 0605/100|bc
6
10:51 [sum...@bobtail ~]$ mm=$(echo 0605/100|bc)
10:51 [sum...@bobtail ~]$ echo $mm
6
10:51 [sum...@bobtail ~]$
Read the docs, there's quite a deal more bc can do. Yes, I know it's
slower, but then it does bigger numbers and it does decimal arithmetic.
For the specific case above, bash (I don't know about zsh) does
substrings, and your task is actually string manipulation, not arithmetic.
--
Cheers
John
-- spambait
1...@coco.merseine.nu z1...@coco.merseine.nu
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Re: running NTP with Linux under z/VM
Phil Tully wrote: Sounds like Adam has gotten into the cough medicine again Which reminds me, I've been thinking someone needs to remind me where the Penguin Food site is. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Filemaker 10 on system Z Linux
Mark Post wrote: On 10/26/2009 at 1:54 PM, "Shockley, Gerard C" wrote: Anyone running Filemaker on LoZ? I don't see how they would be, since it's Intel-AMD/PPC only and no source code is available. And as far as I can tell, it's not available for Linux: http://www.filemaker.com.au/support/downloads/index.html http://filemakertoday.com/com/showthread.php?t=15779 -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Universal Binaries on Linux?
Kirk Wolf wrote: LSB is much more than standard file system layouts. It allows you to build a common binary package (for a given processory architecture) that can be installed on any LSB-compliant distro (with that processor architecture). Do people actually do that? When first I tried it (and I have done it), I discovered problems such as library versions. I wouldn't even try taking a Fedora package to install on RHEL-clone, except maybe when the two are in step, because I would anticipate that the Fedora version would use new features of existing libraries, such as but not limited to, glibc, and new libraries. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Universal Binaries on Linux?
John Campbell wrote: Data Segment being the same? No, I don't see it happening *that* well. The BSS segment, no problem, but static data? Anyone remember the nUxi problem? Yes, I am referring to "byte sex" or "endianness". Intel is small endian and pSeries/zSeries is large endian. This As I recall, the CPU can be either - when running OS/2 it was little-endian. affects how data is laid down in the static data segment unless there's an extra layer making memory access non-native. (I once did internals development/maintenance on Thoroughbred Business BASIC so I know, when it comes to byte sex, whereof I speak.) I *think* the "Universal" binaries for Mac OS X between the PowerPC and x86 architectures have two copies of the code and something special to re-map data, or, possibly, there's some concepts, like ANDF, snarfed from OSF/1's model, where the loader does something funky to the code on the way into RAM... or, possibly, there's some kind of translation that happens during final loading. Apart from endian differences, I wonder about word size. Are we all agreed on floating point these days? -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: VM-Linux
Ron Wells wrote: tried going to link and get page not found From: Richard Gasiorowski To: LINUX-390@VM.MARIST.EDU Date: 10/22/2009 02:46 PM Subject: Re: VM-Linux Sent by: Linux on 390 Port http://www.ibm.com/developerworks/forums/thread.jspa?messageID=14297138&tstart=0 I can read it, try again? -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Autoyast question
Thang Pham wrote: I cannot putty to the Linux. On the 3270 session, I see a lot of these messages: SFW2-INext-DROP-DEFLT IN=eth0 OUT= MAC= SRC=9.60.18.134 DST=239.255.255.253 LEN= 94 TOS=0x00 PREC=0x00 TTL=1 ID=0 DF PROTO=UDP SPT=36942 DPT=427 LEN=74 SFW2-INext-DROP-DEFLT IN=eth0 OUT= MAC= SRC=9.60.18.208 DST=239.255.255.253 LEN= 94 TOS=0x00 PREC=0x00 TTL=1 ID=0 DF PROTO=UDP SPT=43525 DPT=427 LEN=74 That's your firewall. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Kickstart question
Brad Hinson wrote: 16:59:08 INFO: inserted /tmp/dasd_diag_mod.ko 16:59:08 INFO: inserted /tmp/dasd_fba_mod.ko dasd_erp(3990): 0.0.0100: EXAMINE 24: No Record Found detected dasd_erp(3990): 0.0.0101: EXAMINE 24: No Record Found detected I remember them, we got them running OS/VS1, in the page datasets. IBM engineers said, "It's software." Software folk said "It's hardware." VS1 didn't log them (eres). Eventually, we replaced the IBM 231[49] drives with Memorex 3330-1 clones. Problem fixed. I suppose the standoff might still continue. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: SLES11 and smartd
David Boyes wrote: On 10/20/09 4:34 AM, "John Summerfield" wrote: David Boyes wrote: If all we have are ECKD devices, can I turn smartd off ? I did. Seems fine. Hmm. I wonder if I could reformat the ERP data from ECKD devices into something that smartd could grok? That might be fun... Porting the package properly would work better. I'm not sure I follow. Could you explain? A package that monitors the ECKD hardware and produces alerts, in a similar manner to what the smartmon tools do, would work better. I doubt that the ECKD data could be translated to SMART data without loss of information. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: SLES11 and smartd
David Boyes wrote: If all we have are ECKD devices, can I turn smartd off ? I did. Seems fine. Hmm. I wonder if I could reformat the ERP data from ECKD devices into something that smartd could grok? That might be fun... Porting the package properly would work better. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: TPC Replication and Linux
Melancon, Ruddy wrote: We are currently doing Global Mirroring creating a "consistency group" every 30 seconds. What impact will this have during a recovery situation when we implement zVM and zLinux. The concern is in regard to Linux caching of output and the potential loss of disk metadata. Can we be assured that Linux will recover during a disaster situation. We do plan on doing a flashcopy of Linux volumes after placing the Linux images in single user mode. The question of copying Linux filesystems while the system is live has been debated here many times. You cannot use external facilities to copy a Linux filesystem while it's mounted, maybe even when it's mounted ro as even then,there may be some filesystem errors corrected (for example, consider running fsck which can only be run on a filesystem when it's mounted ro). There is nothing an external device, such as a storage controller, having any idea of what's in the Penguin's head. I have cloned Linux filesystems while they're mounted, even when rw, and got away with it, but then I wasn't betting the bank on it either. I'd never do it for something where my future employment or bank deposits were at risk. I'm sure Google can help you find previous discussions. Key words to look for include clone, backup, flashcopy, linux. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
opensuse
I have just been idly looking around various SUSE/Novell ftp sites to see what's on offer. Something I found was bits of opensuse apparently built for Zeds. Oi! I said, I've heard about Fedora on Zeds, so I headed off to opensuse.org and had a quick look around there. 11.2 is almost out, see http://software.opensuse.org/developer/ I note that Power's not mentioned (but is supported for 11.1), and S390x isn't mentioned either place. Is opensuse planned for Zeds, or are some people just playing around, preparing for SLE11 maybe? -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Has anyone looked into a "console server"
Scott Rohling wrote: Hmmm.. maybe more like announcing your wife just stopped beating you? ;-) Scott Good news, whichever way you look at in. On Thu, Oct 8, 2009 at 7:14 PM, Mark Post wrote: On 10/8/2009 at 6:19 PM, Shawn Wells wrote: -snip- We've had this since RHEL 5.4 released earlier. for once, it's Novell that needs to catch up ;) Hopefully you realize that statement is very similar to announcing you've just stopped beating your wife. :) Mark Post -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Multipathing for ECKD devices
Sterling James wrote: Has the ECKD dasd device driver in SLES11/Redhat 5.4 changed to provide muiltipathing vs multipath? Please, please, do not hijack threads. Starting a new thread is really easy - just click on the list's email address. It's way easier than clicking the "reply" button and then cleaning out the trash. Cleaning out the trash doesn't work well, either. Email clients use special headers such as these to group related messages together: Message-ID: In-Reply-To: Note that those are two headers, both taking two lines (on my screen). The Message-ID is unique in the known universe. "In-Reply-To" can reference many messages. You can't remove those headers. Most email clients can be instructed to group related messages. This process is called "threading." Threading gives users a shorter list of messages, one per topic or thread. They can choose just those topics of interest. I don't know anything useful about "Multipathing for ECKD devices," but I did want to read about "How to share files/disk between 2 LPARS." If, instead, I was a guru on Multipathing and not in the least interested in sharing between LPARs, I'd not have seen your question at all and you'd miss out on guru help. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Windows emulation
Patrick Spinler wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
David Boyes wrote:
(snipped good explanation of basic X11 forwarding)
Or use an ssh client with X11 forwarding turned on. The combination of
putty and xming works well on windows, or (with a bit more fiddling)
cygwin ssh client and cygwin X11.
This is great fun!
From a system running X (such as Linux),
ssh -X somehost
startkde
A ROT for performance:
1 layer of emulation loses 90%.
Bear in mind you're using two layers of emulation. I suggest DOS/Win 3.1
for your first effort, or WI9{5,8}.
I'm sure it will work, and you might like to get some screen shots first
time.
--
Cheers
John
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Re: HELP's in
John Summerfield wrote: John Summerfield wrote: John Summerfield wrote: John Summerfield wrote: John Summerfield wrote: John Summerfield wrote: Gary Cox wrote: HELP One upon a time Mr & Mrs Sin had a baby. He was just a small Sin. Over time, as babies do, he grew. He became a bigger Sin. He joined the priesthood, and became Father Sin. Years passed, and he found favour in the Church. Eventually, he became Cardinal Sin. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: HELP's in
John Summerfield wrote: John Summerfield wrote: John Summerfield wrote: John Summerfield wrote: John Summerfield wrote: Gary Cox wrote: HELP One upon a time Mr & Mrs Sin had a baby. He was just a small Sin. Over time, as babies do, he grew. He became a bigger Sin. He joined the priesthood, and became Father Sin. Years passed, and he found favour in the Church. Eventually, -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: HELP's in
John Summerfield wrote: John Summerfield wrote: John Summerfield wrote: John Summerfield wrote: Gary Cox wrote: HELP One upon a time Mr & Mrs Sin had a baby. He was just a small Sin. Over time, as babies do, he grew. He became a bigger Sin. He joined the priesthood, and became Father Sin. Years passed, and he found favour in the Church. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: HELP's in
John Summerfield wrote: John Summerfield wrote: John Summerfield wrote: Gary Cox wrote: HELP One upon a time Mr & Mrs Sin had a baby. He was just a small Sin. Over time, as babies do, he grew. He became a bigger Sin. He joined the priesthood, and became Father Sin. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: HELP's in
John Summerfield wrote: John Summerfield wrote: Gary Cox wrote: HELP One upon a time Mr & Mrs Sin had a baby. He was just a small Sin. Over time, as babies do, he grew. He became a bigger Sin. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: HELP's in
John Summerfield wrote: Gary Cox wrote: HELP One upon a time Mr & Mrs Sin had a baby. He as just a small Sin. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: HELP's in
Gary Cox wrote: HELP One upon a time Mr & Mrs Sin had a baby. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Using IPTABLES in SLES10 (NAT)
Samir Reddahi wrote: Hi Florian, You can use the boot.local (/etc/init.d/boot.local) to add the commands. The boot.local is executed right before the runlevel change. That sounds like The Wrong Way. If you use the SUSE firewall tools, it's best to use them properly, not work around things you don't understand. How would your successor be able to do it. I use RHEL-clone and Debian with shorewall, and not SLES much at all so I can't really comment on specifics, but I have the impression that some other parts of SLES expect the firewall scripts to work in a certain way, so substituting others may not be practical. OTHO SUSE configuration tools are, in my estimation, generally better than RH's, and Debian doesn't assume one uses a firewall at all (but provides several tools for managing them). In your position, I'd start by reading the documentation. All of it. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Novell iPrint Server using SLES on System z?
Eugene Carter wrote: Greeting Listers... I have been getting plenty of questions within our organization lately regarding the support capabilities of the zLinux environment for a variety of service and infrastructure applications we employone of the latest is Novell's iPrint (which we are a heavy user of) In each case you should ask the question of the supplier[1], Novell in this instance, and since Novell is involved I would also ask SUSE. Only the software supplier can give a definitive answer (unless you find happy users), and by _formally_ asking the supplier you go to establish the need, a "no" now may become a "yes" in the future. [1] I don't think it would hurt to ask, in the case the answer's "no," for suggested alternatives. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: emulating a z/OS DDNAME dataset concatenation in Linux
John McKown wrote:
I'm a z/OS (and back to OS/VS1) type person. I don't know of any way to
I remember PCP, MFT and MVT[-)
do this as I think you want to. What I assume is that you basically want
to do one open() type function, and have the run time give you the
records from the file(s) in the concatenation without any more work on
your part anod only get an eof() indication at the end of the last file.
Now, I can envision writing a subroutine to do this, but I don't know of
one built in to, say, glibc. Now Perl does this if you do something
like:
I haven;t seen anyone offer a suggestion that will work for a program
that expects one input file that is not stdin. I think this does what
you want.
fred <(cat lots of files)
It's called "process substitution." and you can read all about it in the
bash manpage. The above example is a special case, one could also filter
input (using grep maybe) or generate a report from a database
(postgresql and psql perhaps), and the analogue for writing also works.
#!/bin/perl
while (<>) {
print $_;
}
and invoke it:
perl -f program.pl file1.txt file2.data
it will read file1.txt and file2.data in that while() loop. But
something like C or Java generally won't.
On Thu, 2009-10-01 at 22:08, BISHOP, Peter wrote:
Hi,
I've searched around and drawn a blank. What I'm wondering is whether there is
a method in Linux that emulates a z/OS DDNAME's facility of allowing multiple
datasets to be concatenated and effectively treated as one file.
I looked at symbolic links, the "cat" command, variants of the "mount" command,
but didn't see anything clearly supporting this. The ability supported by the DDNAME concept of
not needing to copy the files to concatenate them is important as we want to avoid as much overhead
as possible.
What we'd like to do is run a job on zLinux that accesses multiple z/OS datasets in one
"file", as is done with the DDNAME concept with z/OS JCL.
Can NFS in some way support this? I think NFS will only use the "mount"
command anyway, but has it another route than that?
Thanks in advance for any help you can offer.
Best regards
Peter
Peter Bishop
HP Enterprise Services Asia Pacific South Mainframe Capability & Engineering
+61 2 9012 5147 office | +61 2 9012 6620 fax | peter.bis...@hp.com
36-46 George St | Burwood | NSW 2134 Australia
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Re: Adam is moving on...
Adam Thornton wrote: Some of you know this already, and some of you don't: Last month, I was offered a great opportunity at another organization that will allow me to focus my career in a way I have been interested in for quite a while. I accepted that position, knowing that my customers at SNA would be in good hands after I left. As a result, this Friday is my last day with SNA. Sine Nomine and its owners have been quite supportive of my move, for which I am very grateful. Have fun! -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux and z/VM Wiki
David Boyes wrote:
No, I understood what he meant. I was expressing a sincere dislike for
diluting the discussion here with Yet Another Place to check for
things that interest me.
Doing the discussion using the discussion tools in Mediawiki is a
significant step backward in function in that I have to use their
editor and their encoding, and I can't take advantage of any of the
editing and indexing tools I've developed over the years, The MW
editor is really crude and not really very well adapted to keyboard-
oriented users.
I guess I'm just getting less tolerant of things that use my time
unwisely. I'd like to contribute, but the tools are so far away from
what I spend most of my day doing that there's a lot of impact to how
effective I can be. I could write comments and stuff in text files and
then upload it, but at that point I might as well just post it to this
list.
It's a useful project. I just don't think the discussion tools in the
wiki are very good.
Good or not, they can provide a record of why things were done and why
they were done the way that were.
On a list, discussion can peter out quit quickly, even when a matter
remains unresolved, errors will never be corrected if they're not
corrected quickly, and out of date information is never updated. Even
the diligent can get out-o-date information.
A discussion thread I know of on the woodwork forums has been running
for five years or so. It describes some problems with a particular piece
of machinery, and fixes for those problems. As the model was improved
("engineering changes") the information has been updated. That kind of
maintenance cannot work on a list like this. Such a discussion about an
ongoing product (eg a wiki) has some advantages over a list, especially
a general list such as this.
The woodwork forum is hosted with vbulletin, and it's normal that
participants in a thread get notification of updates to threads they
have participated in, and one can also subscribe to threads without
posting to them.
If someone wants to participate in the maintenance of the wiki, they
should establish a regular time, maybe once a week, to have a look at
what discussions are taking place. It won't have the same kind of
responsiveness as a list, but short response times are not always an
advantage.
--
Cheers
John
-- spambait
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Re: Linux and z/VM Wiki
Mark Post wrote: On 9/23/2009 at 1:36 AM, "Douglas M. Wooster" wrote: -snip- I'm sure one could use a Wiki as a discussion forum, but it really seems better suited to developing, storing, and searching reference material. I'm not sure how this meme got started, but nobody is advocating moving general discussion from the mailing list to the Wiki. What I _did_ say/mean was that as the Wiki grows, I would like to see the discussion of what content goes where (organization/structure), what other topics are needed, what existing topics need editing, etc., happen on the Talk pages of the Wiki itself, not here. Until the number of people actively contributing to the Wiki reaches whatever critical mass is necessary, most of that discussion is going to have to happen in this mailing list. That's a significant difference, obviously, and one that I believe respects the time of the people on the list that aren't going to be interested in such minutiae. Being able to place documentation where other people can find it, like you can do on a wiki, is great, when you have something authoritative to say. Given the population of this mailing list, I can't think of any more authoritative source. Everyone from the people doing actual z/VM and Linux development, to the distribution providers, to the "old hands" at z/VM and Linux, to the brand new person is represented here. Seems db misinterpreted something Jack Woehr said, then some of the others of us took it further off the rails. David, Jack was referring to the discussion of the wiki itself when he was talking about discussion on the wiki. Mark, I think that if discussion of the wiki on the wiki could be mirrored to this list, at least for a while, that might be of interest to others and maybe inspire a few, "I can do that!" -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux and z/VM Wiki
Mark Post wrote: Cross-posted to Linux-390, IBMVM, and IBM-Main The idea of having a Wiki (http://dictionary.reference.com/browse/wiki) for mainframe Linux and z/VM has been floating around for some time. It was thought that having a Wiki with a fair amount of content already in it would help it reach a "critical mass" of usability far sooner than might otherwise happen. A fair amount of behind-the-scenes work has been done over the last couple of years to make that happen, without much success. One can easily get the idea you're talking about Linux on VM. Consider making it clearer that Linux on VM is only part of the story, Linux on zHardware (is s/390 sufficiently matured yet to be excluded?) and Linux on Hercules could both find homes there. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux and z/VM Wiki
Mark Post wrote: There are a few rules, for lack of a better term, that will apply to the Wiki, none of them particularly onerous: 1. Although technically not required, we would prefer that anyone contributing to the wiki create an account before doing so. You should insist on this. I've installed Drupal at isay.js.id.au and done a little, but not much, to publicise it. There is nothing to prevent people from trying to create accounts, and a few people have done so. Because this is all new to me, I decided that account creations would have to be approved. Very glad I am. So far, I have approved one account and denied lots. Reasons for denial: 1. The software sends email to the email address provided. A lot has bounced. 2. I Google user names and email addresses, initially from idle curiosity. I've found some usernames enrolled at other sites, sometimes in the same timeframe. Some names and domain names are associated with spammers. The one I approved was apparently by a young Indian (not North American!) woman recently graduated from an Indian university. I thought she might have some useful contributions to make. She's not been back. I've decided I'd like Drupal to record the IP address associated with new enrollments (and maybe other activity, and the ability to block some locations. Proxies for example. Someone might claim to be located in Russia, but that doesn't mean they are. I suggest that you too moderate enrollments. Maybe you could also _require_ people to outline why they want an account - that should halt any bots in their tracks. If you solicit enrollments from a cyberlocation such as this list, ask people to choose account names and provide other information that would help you recognise them. I someone claiming to be John Campbell and having experience in AIX, likely you'd say, "Oh, that John Campbell. Welcome!" -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: Linux and z/VM Wiki
Jack Woehr wrote: John Summerfield wrote: Who should, sensibly, assume that this site speaks for any part of the Linux community? Well, the Linux on z/VM community. It needs a wiki. It's a good idea. It's a shame you quoted me without context. -- Cheers John -- spambait 1...@coco.merseine.nu z1...@coco.merseine.nu -- Advice http://webfoot.com/advice/email.top.php http://www.catb.org/~esr/faqs/smart-questions.html http://support.microsoft.com/kb/555375 You cannot reply off-list:-) -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
