Re: Linux on an AS/400?
Dear Dan, This web page gives a rather good overview of the steps required to create a logical partition where Linux can be hosted on an IBM iSeries - AS/400 server. http://www.midrangeserver.com/mpo/mpo052203-story03.html Because of the way in which this particular server manages delivering hardware resources to an OS, you are required to use a Linux distro specially crafted to work with the iSeries hardware. HTH Best Regards, /Paul -- Paul Tykodi Principal Consultant TCS - Tykodi Consulting Services LLC Tel/Fax: 603-343-1820 Mobile: 603-866-0712 E-mail: [EMAIL PROTECTED] WWW: http://www.tykodi.com Date: Sun, 26 Mar 2006 15:13:25 -0500 From: Dan Coutu [EMAIL PROTECTED] To: GNHLUG mailing list gnhlug-discuss@mail.gnhlug.org Subject: Linux on an AS/400? I have access to a fairly cheap AS/400 and am wondering if Linux will in fact run on it. Preliminary research indicates that it might but I thought I'd ask here in case anyone actually has experience with it. Do I need a version of Linux, like RHEL, that is blessed by IBM? Dan ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: perl and network addresses
Python [EMAIL PROTECTED] writes: Would it help to convert to 32-bit integers? I might. I'll try that. I think I understand the arithmetic. I do not really understand what you are trying to do. That's okay, neither do I ;) (If you really want the long convoluted discussion, I'll be glad to post it, I just figured no on would care. Of course, I also often misunderstimate the intellectual curiosity of fellow geeks :) -- Seeya, Paul ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: perl and network addresses
Ben Scott [EMAIL PROTECTED] writes: I tried perl -we '$a = inet_addr(192.0.2.42);' but it complained that inet_addr is not defined. I suspect there's a module somewhere you need to pull in. Hopefully this is enough to get you started. You likely need to use -MSocket, and then figure out which of the correct functions in there are analogous to inet_addr. The ones which leap to mind are inet_ntoa and inet_aton. There doesn't seem to be an inet_addr. -- Seeya, Paul ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: perl and network addresses
Paul Lussier wrote: Python [EMAIL PROTECTED] writes: Would it help to convert to 32-bit integers? I might. I'll try that. It will definitely help. If you get the netmask and address both in 32-bit integers, then calculating the network and broadcast addresses is very straightforward. Here's some sample code: network = address netmask; broadcast = address | ~netmask; The above is C, but should work in Perl, too. Of course, after looking back through the thread, I see Ben has already pretty much answered the above. ;) I think I understand the arithmetic. I do not really understand what you are trying to do. That's okay, neither do I ;) (If you really want the long convoluted discussion, I'll be glad to post it, I just figured no on would care. Of course, I also often misunderstimate the intellectual curiosity of fellow geeks :) I think Paul explained it pretty well in his first post. Let me explain to see if I really understand. Paul is using a network that is restricted to using a /19 netmask for addressing, but it is really using a /16 when configured. So, he wants to limit address to 10.0.32.0/19 but needs to configure broadcast and network addresses for 10.0.32.0/16. Why he needs to do that, I have no idea and wouldn't need to know. ;) Ben's previous message pretty much explains how to solve this. It seems to me that the answer is that your IP addresses are limited to the range of 10.0.32.0 to 10.0.63.255 with 10.0.0.0 being the network address and 10.255.255.255 being the broadcast address, no? Cheers, Jason ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Bluetooth Serial port?
I got my new BT dongle running easy enough... it pairs fine with my BT GPS... ...The BT Serial port monitor sees the data... ...but anyone know how I can figure out which /dev/ it's using? I'm at a loss. (This is on a fully up to date Mandriva 2006 install) Any clues? dmesg is silent... so is /var/log/messages. They just tell me the dongle is a HID and the modules loaded OK. Brian ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: perl and network addresses
On 3/28/06, Paul Lussier [EMAIL PROTECTED] wrote: If you really want the long convoluted discussion, I'll be glad to post it, I just figured no on would care. Well, everyone here knows *I* thrive on long, convoluted discussions. I'm also curious if you're trying to route packets through a non-existant gateway again. ;-) perl -we '$a = inet_addr(192.0.2.42);' but it complained that inet_addr is not defined. You likely need to use -MSocket, and then figure out which of the correct functions in there are analogous to inet_addr. The ones which leap to mind are inet_ntoa and inet_aton. There doesn't seem to be an inet_addr. Hmmm Well, I just tried that quickly, but it looks like Perl's inet_aton() function results in something that Perl thinks is a string, not a long integer. (Probably because inet_aton() is defined in terms of a pointer to character(s), in typical C fashion.) I don't know how to tell Perl to treat the result as the integer it is (so I can do binary operations on it). Or maybe I'm using it wrong. -- Ben ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Bluetooth Serial port?
On Tuesday 28 March 2006 10:50 am, Brian Chabot wrote:
I got my new BT dongle running easy enough... it pairs fine with my BT
GPS...
...The BT Serial port monitor sees the data...
...but anyone know how I can figure out which /dev/ it's using? I'm at a
loss.
In my case, it's configured as follows in rfcomm.conf to use /dev/rfcomm0 as
the serial port. And the major/minor device numbers are below that
configuration. The binary rfcomm reads this file and binds the necessary
device to the bluetooth serial.
-N
neilmobile:/etc/bluetooth# cat rfcomm.conf
#
# RFCOMM configuration file.
#
# $Id: rfcomm.conf,v 1.1 2002/10/07 05:58:18 maxk Exp $
#
rfcomm0 {
bind yes;
device 01:CC:20:61:37:15;
channel 1;
comment Treo 650;
}
neilmobile:/etc/bluetooth# ls -al /dev/rfcomm0
crw-rw-rw- 1 root dialout 216, 0 Jul 9 2005 /dev/rfcomm0
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Re: perl and network addresses
On 3/28/06, Jason Stephenson [EMAIL PROTECTED] wrote: Of course, after looking back through the thread, I see Ben has already pretty much answered the above. ;) Repetition is the very soul of the net. -- from alt.config Paul is using a network that is restricted to using a /19 netmask for addressing, but it is really using a /16 when configured. So, he wants to limit address to 10.0.32.0/19 but needs to configure broadcast and network addresses for 10.0.32.0/16. Why he needs to do that, I have no idea and wouldn't need to know. ;) Well... okay... but it's the *why* that makes me wonder. :) I hope it's something interesting, and not just that he's trying to say that he's been assigned the addresses in the range 10.0.32.0/19 on the 10.0.0.0/16 network. That would be *so* boring. :) It seems to me that the answer is that your IP addresses are limited to the range of 10.0.32.0 to 10.0.63.255 with 10.0.0.0 being the network address and 10.255.255.255 being the broadcast address, no? Well, /16 means the first two octets are the network portion and the last two octets are the host portion. So the broadcast address (with CIDR) would be 10.0.255.255. Of course, 10.0.32.0/16 would normally be written 10.0.0.0/16, because, again, the third octet is part of the host portion. The host portion is really irrelevant when talking about network numbers. Convention says we fill the host portion with zeros. -- Ben ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Bluetooth Serial port?
On Tuesday 28 March 2006 11:09 am, Neil Schelly wrote: In my case, it's configured as follows in rfcomm.conf to use /dev/rfcomm0 as the serial port. And the major/minor device numbers are below that configuration. The binary rfcomm reads this file and binds the necessary device to the bluetooth serial. That's definitely a start in the right direction. The entire file is commented out though. I'll play with it and see what happens. Thanks! Brian ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Bluetooth Serial port?
On Tue, 2006-03-28 at 10:50 -0500, Brian Chabot wrote: I got my new BT dongle running easy enough... it pairs fine with my BT GPS... ...The BT Serial port monitor sees the data... ...but anyone know how I can figure out which /dev/ it's using? I'm at a loss. (This is on a fully up to date Mandriva 2006 install) Any clues? dmesg is silent... so is /var/log/messages. They just tell me the dongle is a HID and the modules loaded OK. You could also try using lsof... -- Cole Tuininga [EMAIL PROTECTED] ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Linux on an AS/400?
On Mar 26, 2006, at 15:13, Dan Coutu wrote: I have access to a fairly cheap AS/400 and am wondering if Linux will in fact run on it. Preliminary research indicates that it might but I thought I'd ask here in case anyone actually has experience with it. Do I need a version of Linux, like RHEL, that is blessed by IBM? Just make sure to check on the models. I've worked with old clunky (slow slow slow) hardware called an AS/400 and a new dual/quad-core Power 5 box called an AS/400 (at least by the IBM field guys). They're also called iSeries and if it can run OS/400 it's often called an AS/400. Those new Power 5 boxes are super sweet. They have a hypervisor that explicitly supports linux. I understand folks are using linux tools to manage/backup the OS/400 data. The hypervisor lets you share virtual disks among OS's. -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: People still interested in shared colo?
On Mar 16, 2006, at 10:45, Brian wrote: As part of this setup you would get: Rackspace Power Remote power-switch access for reboots *minimal* amount of hot-hands work if needed Bandwidth (we'll say unlimited for now, but this setup is NOT for mega-torrent hosting, pr0n serving, etc. You CAN run a commercial site though). Primary DNS server access What are folks using for serial consoles these days? I have an old Xyplex box but it only supports telnet. :) You'd think a basic linux box with a multiport serial card would suffice. But building a whole PC for a serial console seems like overkill (but maybe not economically). -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Registrars hoarding domain names?
I read another the Internet is about to collapse story today, so not finding the site that catalogues such predictions and makes fun of the pundits, I figured it would be a good idea to put one up. The domain name that came to mind immediately was 'collapse.net'. So, first stop, firefox - no website there. Next stop WHOIS... UH WHAT? Output attached - if you go to register.com and try to register it it says it's unavailable but they offer to let you bid on it for $200 or more. This seems entirely unkosher. I've seen the 60-90 day grace period holds, but nothing like this. Anybody see this before? You'd think ICANN would be putting the smackdown on this kind of operation. -Bill Organization: register.com Unpaid Names Department-R 575 Eighth Avenue New York, NY 10018 US Phone: 212-798-9200 Fax..: 212-594-9876 Email: [EMAIL PROTECTED] Registrar Name: Register.com Registrar Whois...: whois.register.com Registrar Homepage: http://www.register.com Domain Name: COLLAPSE.NET Created on..: Thu, Oct 07, 2004 Expires on..: Wed, May 19, 2004 Record last updated on..: Sat, Oct 09, 2004 - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Co-op co-lo server?
Hello, world! I've had this idea that I've been tossing around inside my head, and I decided I wanted to toss it out here to see what people think. I'd like to have a Linix box on a real IP feed (symmetric, reliable, etc.), with proper power, cooling, and all that, that I could put my own spare-time projects and such on. Something I could host my personal email on, maybe a vanity website, some other website ideas I've had, plus a place to SSH to for utility purposes. Sort of a $HOME away from home, if you will. I've even got some hardware (a nice 1U box) to throw at the idea. However, I don't want to pay any serious amount of money for this. Even Brian (karas.net)'s very nice $50/month is more than I want to spend. This is basically for play, when it comes right down to it. But then I started thinking, there's prolly others who'd like the same thing, but who are also cheap bastards like me. If, say, ten people signed up for this, and we could get a rate like that $50/month for the colo, well, $5/month I could easily throw away on a play box. So: Would anyone here be interested in co-op for a colo server for this kind of thing? Right off the bat, I'd have to say there is no guarantee of reliability. It would prolly have to be personal only -- no businesses. General bandwidth demands would have to be fairly minimal, too -- no hosting a Red Hat mirror or streaming MP3's for your band or anything. (Occasional big file transfer would be fine, it's the big picture I'd be worried about.) We'd have to work out some kind of internal governance for things like root access and software install and that kind of thing, to keep it from turning into a disaster. But in general, I'd hope to keep it as open as possible. Comments, commendations, condemnations, suggestions, interest, etc.? -- Ben What am I getting myself into? Scott ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Registrars hoarding domain names?
On 3/28/06, Bill McGonigle [EMAIL PROTECTED] wrote: Output attached - if you go to register.com and try to register it it says it's unavailable but they offer to let you bid on it for $200 or more. It appears you're not the first to encounter this. http://www.google.com/search?q=%22Unpaid+Names+Department%22 Register.com has something of a bad rep anyway, from what I hear. You'd think ICANN would be putting the smackdown on this kind of operation. BWWHAHAHAHAAHAH -- Ben ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: People still interested in shared colo?
On Mar 28, 2006, at 13:07, Drew Van Zandt wrote: I'd suggest maybe people could buddy up and set up a serial crossover cable between two systems... That's perfect. Brilliant suggestion. (I was waaay inside the box) Marlboro, MA isn't the right place for my server (ya can't get thar from here) but I suspect I'll use that trick wherever I find a home. Thanks, -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Co-op co-lo server?
On Mar 28, 2006, at 13:11, Ben Scott wrote: Something I could host my personal email on, maybe a vanity website, some other website ideas I've had, plus a place to SSH to for utility purposes. Sort of a $HOME away from home, if you will. You might also be interested in a VPS instead of running a coop (the somebody-else-runs-the-coop model) Lloyd swears by Tummy: http://www.tummy.com/Hosting/virtual.html though they're $25 a month for a 50MB of RAM package which might get tricky under RH/Fedora (how do they do that?) I'm paying $49 a month for my server but that ISP now charges $99/mo for the same class machine for new accounts. I'm seeing the same thing with SSL Certs - I used to get InstantSSL certs for $49 now they're $99. DynDNS is even charging more than Thawte! The pendulum certainly seems to be swinging back to the DYI-is-cheaper side. -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Password compromise in Ubuntu
I meant to post this when I first encountered it -- by now everyone may already know about it. But if not... Ubuntu Breezy's installer keeps a log of what you tell it during the question-and-answer dialogue. This unfortunately includes the password you create for the first user. The first user has sudo privileges. I've used shred(1) on the log files on my Ubuntu systems. In the future I think it'll be a good idea to DELETE that first user after getting the real users set up. (In addition to trusting Ubuntu to have fixed the problem, which they have for Dapper.) You may want to adopt yet another approach. But for sure anyone running Ubuntu should know about the vulnerability. One URL: http://digg.com/linux_unix/Ubuntu_password_bug_fixed_in_just_a_few_hours -Bill ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: People still interested in shared colo?
Oh, that dodge also brings this to mind... http://www.servercase.com/miva/miva?/Merchant2/merchant.mv+Screen=PRODStore_Code=SCProduct_Code=CK147Category_Code=1UE Neat, eh? --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Registrars hoarding domain names? (Summary)
On Mar 28, 2006, at 13:18, Ben Scott wrote: It appears you're not the first to encounter this. Ah-ha! I bow to your superior Google-Fu, benscott-san. Summary: * Network Solutions and Register.com are known for doing this. * They've been doing it since at least 2002. * ICANN gets its $6 a year regardless so it doesn't care ( I assumed they weren't paid so they'd care, but they are). * The registrars are hedging bets against someone going to a different registrar, plus they'd like the auction/escrow fees $250 * Some people have had success calling Register.com on the telephone and asking them to release the domain into the deletion pool * This issue isn't specifically addressed in any of ICANN's website FAQ's * There is no definition of how and when domains are to be released back into the pool in ICANN's contract with registrars. All the good registrars who are doing it the right way are just being ethical. The last one seems to be the problem. I might write the appropriate office at the FTC suggesting that be required. The current policy breaks any chance for an efficient market. -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: People still interested in shared colo?
On Tuesday 28 March 2006 01:57 pm, Drew Van Zandt wrote: Oh, that dodge also brings this to mind... http://www.servercase.com/miva/miva?/Merchant2/merchant.mv+Screen=PRODStor e_Code=SCProduct_Code=CK147Category_Code=1UE Neat, eh? Definitely has neato factor, but not much utility. A single, even just reasonably powerful, server in that box would outperform that by far and you could run several virtual machines in it to get the multiple machine feel. I've been playing with Xen a bunch lately and it's proven quite flexible and powerful. You could get a typical 1U server with dual procs or something and RAID together two hard drives, and then run 4 or more virtual machines that would each outperform those two ITX platforms. -N ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Registrars hoarding domain names? (Summary)
On Tue, 28 Mar 2006 14:01:54 -0500 Bill McGonigle [EMAIL PROTECTED] wrote: * There is no definition of how and when domains are to be released back into the pool in ICANN's contract with registrars. All the good registrars who are doing it the right way are just being ethical. So one shouldn't do business with Netowrk Solutions? Oh wait. One already shouldn't. -Bill ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Password compromise in Ubuntu
Bill Sconce wrote: I meant to post this when I first encountered it -- by now everyone may already know about it. But if not... Ubuntu Breezy's installer keeps a log of what you tell it during the question-and-answer dialogue. This unfortunately includes the password you create for the first user. The first user has sudo privileges. I've used shred(1) on the log files on my Ubuntu systems. In the future I think it'll be a good idea to DELETE that first user after getting the real users set up. (In addition to trusting Ubuntu to have fixed the problem, which they have for Dapper.) You may want to adopt yet another approach. But for sure anyone running Ubuntu should know about the vulnerability. As far as my experience tells, this only applies if non-expert install mode was used. -- Sarunas Burdulis Systems Administrator Department of Mathematics 313 Bradley Hall, Dartmouth College (603) 646-9255 ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
OT - designed for Internet Explorer
Move over, Boston Globe -- In the last week or so an unnamed credit union of which I'm a member has been rumoured to have lost control of their PIN list -- someone took it home on a PC, somewhow someone else got hold of the PINs, and eventually a depositor noticed that their account had been cleaned out. (All of this is just rumour, part of the chuckle.) A few minutes ago, when I went to check a balance (this credit union has an online, designed for Internet Explorer Web facility) where the login page should have been was a page saying we periodically require that all PINs be changed, enter your old PIN and a new one in the form below and click SAVE, etc.) Just like the notices I've been getting from Wells Fargo, and Chase, and everywhere else I don't have an account. Wait, I do have an account here. And the software IS maintained by folks who think works with IE is acceptance testing... So I called the credit union. Answer: the PIN change is indeed being requested by the credit union; it's not a man-in-the-middle attack. (This time.) So much for legitimate instututions will we'll never ask you for your personal information on line, yadda yadda. (Yes, I know, there's a difference, but this is just too funny.) And I guess it IS periodic. There has to be a first time. Right after a breach would be a good time to start... :) As I say, for amusement purposes only. No names named. Still, it's supposed to be wise to check one's accounts from time to time at ANY institution, since there's a time window for reporting errors... -Bill Update: phone conversation with a rep a few minutes ago. They did experience a loss. That part's not rumour. Update II: the telephone-response system, which used the same PINs, isn't being updated. (Can't -- different operating system, doesn't talk to the IIS system.) So the PINs stolen in the PC episode are now only useful to the criminals via the TouchTone system. Wouldn't Joseph Heller be proud? ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Password compromise in Ubuntu
On Tue, 28 Mar 2006 14:19:51 -0500 Sarunas [EMAIL PROTECTED] wrote: As far as my experience tells, this only applies if non-expert install mode was used. Quite possibly. It got ME. :) -Bill ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: perl and network addresses
Jason Stephenson [EMAIL PROTECTED] writes: It seems to me that the answer is that your IP addresses are limited to the range of 10.0.32.0 to 10.0.63.255 with 10.0.0.0 being the network address and 10.255.255.255 being the broadcast address, no? Err, you've got the IP addresses wrong. It's 10.32.0.0/16, but segmented on a /19 boundary. I need to be able to calculate the next network, which for 10.32.0.0/19, would be 10.64.0.0/19, then take the host portion and add it to this new network such that any given host has the same host portion on all networks it may exist on. -- Seeya, Paul ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: perl and network addresses
Ben Scott [EMAIL PROTECTED] writes: Well... okay... but it's the *why* that makes me wonder. :) I hope it's something interesting, and not just that he's trying to say that he's been assigned the addresses in the range 10.0.32.0/19 on the 10.0.0.0/16 network. That would be *so* boring. :) Well, since you've asked, I'm sure you'll regret it :) I'll try to be as brief and concise, yet clear as possible. It's confusing. We have no internal router. Just a legacy BSD box acting as a firewall. The internal network, for there really is only one, is 10.0.0.0/16. When it was set up, the 10.0.0 space was allocated along CIDR boundaries on the premise that someday we would have a router to separate un-like network traffic. As a result, we have something like this: Address/CIDR block| Function | Address Range Defined -- 10.0.0/22 | Dev/infrastructure servers | 10.0.0.0 - 10.0.3.255 10.0.4/22 | Mgmt/admin desktops, Mac laptops | 10.0.4.0 - 10.0.7.255 10.0.8/22 | Dev desktops | 10.0.8.0 - 10.0.11.255 10.0.12/24| Network hardware | 10.0.12.0 - 10.0.12.255 10.0.13/24| Printers | 10.0.13.0 - 10.0.13.255 10.0.14/24| MS-OS systems| 10.0.14.0 - 10.0.14.255 10.0.32/19| Dev lab systems | 10.0.32.0 - 10.0.63.255 This allocates a generous portion of addresses to various uses, and, if need be, subdivide based on /24 boundaries if we wanted to. The 10.0.32/19 is an interesting beast. The systems which live on it have 2 NICs, the primary eth0, which *always* have a 10.0.32/19 based address (currently restricted to 10.0.33/24 for some reason?!), and a secondary eth1 which has a primary address of 10.106.XX.YY where XX.YY are the same as the 10.0.XX.YY, and where XX is currently always 33. i.e. host 10.0.33.124 has an eth1 IP of 10.106.33.124. Here's the *really* confusing part. Every system's eth1 *also* has 10 virtual/alias IPs of 10.[96-105].XX.YY. If you recall, I mentioned not having a router. Have I mentioned that the number of hosts in the 10.33/16 range is somewhere around 300, with another 50-100 being added in the next 2 months? :) Both NICs in all systems are essentially on one ethernet network! At any given time, these hosts can have both eth0 and eth1 up, plus any number of the 10 alias IPs up. We are actually about to cut over to a new network configuration this week. However, as the saying goes, There's nothing more permanent than a temporary solution. and dev has basically evolved their testing infrastructure to *require* this flat network scheme. I'm currently testing things to make sure nothing breaks in the transition. One of the things our product does is look at the list of currently configured interfaces, take the highest IP and add 1 to the network portion to obtain a new IP on a different network, but retaining the host portion of the IP. Basically, there's a multi-host negotiation which takes place and figures out a back-channel to communicate over. Since name resolution is not possible either via DNS, /etc/hosts, or other means, the only reliable means any two hosts have of reliably talking to each other is making sure that any given host keeps the same host portion of it's IP address on all networks. Does this help clarify things? Ultimately, the ability to support network addition using something wacky like a /19 is entirely my own intellectual curiosity, since in-house everything is on a /16 making it trivial. But it's one of those problems I can neither figure out, nor let go of :) As someone said to me yesterday, IP addresses were never designed to be manipulated, merely assigned and used! :) -- Seeya, Paul ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: perl and network addresses
Ben Scott [EMAIL PROTECTED] writes: On 3/28/06, Paul Lussier [EMAIL PROTECTED] wrote: If you really want the long convoluted discussion, I'll be glad to post it, I just figured no on would care. Well, everyone here knows *I* thrive on long, convoluted discussions. I'm also curious if you're trying to route packets through a non-existant gateway again. ;-) Errr, no, just the opposite actually. Trying to *prevent* routing from a very existent router :) -- Seeya, Paul ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
car box
Hey Everyone, Over the past few months as my 90' celica has been inching steadily closer to its ultimate demise, I've been thinking a lot about where we are with certain technologies, and how I could obtain them in a future car. One thing I've always wanted but had never been willing to spend a lot of money on has been a GPS unit. Recently I've been made aware with a sort of peripheral vision that there are an increasing number of software-based GPS solutions, utilizing a pretty cheap receiver that can be plugged in through USB and used in conjunction with some sort of map software. This got me thinking... why not set up a small microATX system to serve as a music player/GPS navigator/notepad/anything else i wanted? Right now I'm calling the design idea CarBox 0.1. I picture one of those really small boxy mATX cases sitting (mounted would be a better word probably) under one of the seats, with a touchscreen LCD either mounted in the glovebox or somewhere along the dash or front panel. I'd get a decent soundcard so it could output to the amazing stereo setup I'll be obliged to install, and power it with inverters and wires carefully hidden to make it look decent. I'd opt for a setup that generates as little heat as possible so the box wouldn't melt in the summer, but I'd also want the system to boot as quickly as possible (I don't want to wait two whole minutes for my precious, precious tunes). It would also be cool if it could be hooked in to the speedometer/odometer/tachometer for statistical purposes (and to damn myself with evidence should the police stumble across the system when I accidentally slide into a convenience store in the winter). what do you guys think? does anyone know anything about touchscreen LCDs or GPS software? Any comments on the idea in general? Would temperature extremes render an LCD useless in the winter? I'm confident with the right setup the CPU temps wouldn't be too much of a problem. I'd also want whatever OS I'd use to handle hard shutdowns fairly gracefully. Are there any linux file systems well-suited to this task as well as quick boot-ups? -chris that fellow at radioshack said i was mad... well who's mad now?! ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: car box
what do you guys think? does anyone know anything about touchscreen LCDs or GPS software? Any comments on the idea in general? Would temperature extremes render an LCD useless in the winter? I'm confident with the right setup the CPU temps wouldn't be too much of a problem. I'd also want whatever OS I'd use to handle hard shutdowns fairly gracefully. Are there any linux file systems well-suited to this task as well as quick boot-ups? -chris I remember having this fantasy a few years ago (I'm due to revisit it again) and recall that there were a number of web sites dedicated to the building and supply of parts for what was nominally a 'carputer.' I would expect that if you do a google on 'carputer' you will find what your looking for. ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: car box
On Tuesday 28 March 2006 2:55 pm, Christopher Chisholm wrote: Hey Everyone, Over the past few months as my 90' celica has been inching steadily closer to its ultimate demise, I've been thinking a lot about where we are with certain technologies, and how I could obtain them in a future car. One thing I've always wanted but had never been willing to spend a lot of money on has been a GPS unit. I currently have GPS running on my Palm Treo using a BlueTooth GPS receiver for a total cost of well under $300. The maps come on an SD card. While I use this in my car, I can throw the receiver in a shirt pocket. There are a number of companies, such as Mapopolis and TomTom that supply the mapping software. I rejected TomTom out of hand because the only way to install the maps is via Windows. The current retail units run for about $800 for the top of the line Garmin and Magellan units to under $500. Some friends have mapping software on their laptops using either wired or wireless GPS receivers. One of the major differences in the low cost GPS maps I have and the top of the line Gramin is that the Garmin can set waypoints, subscribe to traffic bulletins, and look up hotels, restaurants and brothels. With the Mapopolis, I simply enter an address or mark an end point. It has settings for highway, highway neutral, avoid highways, as does most other units. In general, the after-market units like the Garmin and Magellan have more features than the more expensive built-in units. A friend of mine very much prefers the size of the laptop screen to the smaller commercial units and my Palm, but he lives in a motor home. -- Jerry Feldman [EMAIL PROTECTED] Boston Linux and Unix user group http://www.blu.org PGP key id:C5061EA9 PGP Key fingerprint:053C 73EC 3AC1 5C44 3E14 9245 FB00 3ED5 C506 1EA9 ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Password compromise in Ubuntu
Bill Sconce writes Ubuntu saving the administrator password in a file.: Perhaps it would be wise, with whatever distribution, to always install with a dummy password, then, immediately upon completing the installation, change the password with passwd at a command line. If passwd is compromised, then all bets are off no matter what. But this strategy gives some protection from features naively added to installers and usability improvements. Bill ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: car box
http://www.mini-box.com/s.nl/sc.8/category.12/.f Unfortunately, the m-100 is *just* too wide to fit in a standard stereo slot. ext2 noatime,sync is recommended for compactflash filesystems, I think... I've found CF cards to vary wildly for performance, a 512MB I have is achingly slow compared to a 256MB that's officially rated as slower. Haven't figured that one out yet... I would think if you used someting Knoppix-like you could have pretty much everything you wanted on the CF, except the music... spin the hard drive up only to load the next 5 mp3's or so from the playlist into RAM. Ideally you'd add an accelerometer so you knew not to spin it up during jouncing, of course. There are also things like the StompBox, but the CPUs are a bit slow for my tastes... --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: People still interested in shared colo?
On the other hand, a single server has only one motherboard. I like the idea of being able to do a full *cold* boot of the hardware while the other half is still running. I know there are servers with redundant power supplies etc. that would be as reliable as two entirely separate systems (except for physically being in the same box, they even use separate power supplies)... Also, you can run a Pentium M on mini-ITX boards these days, at least. That's not *too* weak a processor. --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: car box
nice, I found a couple great things on that site! I was thinking of using a laptop drive, something designed to withstand some movement. not a bad idea about the compact flash though... i could use that and system RAM for the main OS, then have a laptop drive that holds media, that way it wouldn't be spinning nearly as much. -chris Drew Van Zandt wrote: http://www.mini-box.com/s.nl/sc.8/category.12/.f Unfortunately, the m-100 is *just* too wide to fit in a standard stereo slot. ext2 noatime,sync is recommended for compactflash filesystems, I think... I've found CF cards to vary wildly for performance, a 512MB I have is achingly slow compared to a 256MB that's officially rated as slower. Haven't figured that one out yet... I would think if you used someting Knoppix-like you could have pretty much everything you wanted on the CF, except the music... spin the hard drive up only to load the next 5 mp3's or so from the playlist into RAM. Ideally you'd add an accelerometer so you knew not to spin it up during jouncing, of course. There are also things like the StompBox, but the CPUs are a bit slow for my tastes... --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: car box
-- Original message -- From: Christopher Chisholm [EMAIL PROTECTED] Hey Everyone, Over the past few months as my 90' celica has been inching steadily closer to its ultimate demise, I've been thinking a lot about where we are with certain technologies, and how I could obtain them in a future car. One thing I've always wanted but had never been willing to spend a lot of money on has been a GPS unit. Recently I've been made aware with a sort of peripheral vision that there are an increasing number of software-based GPS solutions, utilizing a pretty cheap receiver that can be plugged in through USB and used in conjunction with some sort of map gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss This forum is just what you are looking for. http://www.mp3car.com/vbulletin/showthread.php?s=5da0c6a2b59bc6ec5c38375d74d9eafct=72302goto=nextoldest or http://tinyurl.com/pg8u5 ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: perl and network addresses
Paul Lussier wrote: Jason Stephenson [EMAIL PROTECTED] writes: It seems to me that the answer is that your IP addresses are limited to the range of 10.0.32.0 to 10.0.63.255 with 10.0.0.0 being the network address and 10.255.255.255 being the broadcast address, no? Err, you've got the IP addresses wrong. It's 10.32.0.0/16, but segmented on a /19 boundary. I need to be able to calculate the next network, which for 10.32.0.0/19, would be 10.64.0.0/19, then take the host portion and add it to this new network such that any given host has the same host portion on all networks it may exist on. Doesn't matter. I got the network address wrong, too. ;) You want to interpolate the address of one host to another network, is that it? ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: People still interested in shared colo?
On Mar 28, 2006, at 15:31, Drew Van Zandt wrote: Also, you can run a Pentium M on mini-ITX boards these days, at least. That's not *too* weak a processor. I have an embedded 1.7(8?) GHz Pentium-M-based appliance I'm working on and it's really nice. Cool, quiet, quick. On the other hand the board at that link is an 800MHz Via C3. I have one of those as my Asterisk server, and it's, well, it's an i686 missing a few instructions so you have to compile as i586 for everything which isn't automatically detected. The performance is fine for what it is, probably like a 500MHz P3. Still, that box might suck for performance, but if you had a mission critical app (thinking physical security, monitoring a nuclear power plant, etc.) it would be great to have a cookie-cutter box with a heartbeat between mobos with a linux-HA thing and maybe Oracle's new clusterfs on it. -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: perl and network addresses
Paul Lussier wrote: Errr, no, just the opposite actually. Trying to *prevent* routing from a very existent router :) Sounds to me like what you really need is a router with VLAN capability. If I understand correctly, it sounds like you're trying to implement VLANs. Your setup actually sounds very similar to something that we're designing for all the libraries in our consortium. Right now, each site has a Class C (/24) on a 10.10.*. In the near future, we plan to implement each site having a Class B (/16) with different class Cs for each VLAN. For example, if a site is now on 10.10.32.0, it will move to 10.32.0.0 with something like 10.32.0.0/24 reserved for network equipment, 10.32.10.0/24 for the staff, 10.32.20.0/24 for the public, 10.32.30.0/24 for staff wireless, 10.32.40.0/24 for public wireless, etc.--The Dracut Public Library will be our first test case, since they're moving (back) into their renovated building next month. Without VLANs setup in the router, I can't imagine how that would work to prevent traffic among the various 10.32.0.0 subnets. I suppose you could simulate it with some really complicated routing rules. At this point, my knowledge on the matter of networking begins to recede into nothingness. I can set up a simple Linux or *BSD router/firewall. I can do the math (poorly, but that's what computers are for). I can even use the socket() interface, but configuring fancy-shmancy, complicated network topologies is beyond my current abilities. I didn't design the above mentioned topology, nor did I figure out the configuration in the Cisco routers that we buy. However, I'm promised by our contractor that they'll show me enough so I can break things. ;) Long story made slightly longer, I'd suggest looking up how to configure VLANs on whatever you're using for a router.--I know you mentioned a FreeBSD firewall earlier. Cheers, Jason Can't-the-network-for-the-wires Stephenson ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
mini-box mini-itx
The mini-box is pretty decent - I have the fanless 533 MHz motherboard (not the nifty box, just the MB) and have successfully run a 3-disk RAID serving up MP3's and general mass storage to the house, for which it was plenty beefy. Now, if I wanted beef in mini-ITX... http://www.mini-itx.com/2006/03/10/aopens-i945gtt-vfa-intel-viiv-mini-itx-board --DTVZ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Flash as spyware
I just came across this. (Thanks to Bill McGonigle) http://wiki.mozilla.org/Roadmap_Scratchpad ...Cookies provide limited storage space (on the order of a few kilobytes), require the application developer to manually encode and decode any structure more complex than a simple string, and are transmitted back to the server on each request. In response to these limitations, some application developers are using the Flash plugin simply to gain access to a reliable and capable local store. If there hadn't been reasons to avoid Flash before, that's one. Cookies which even the browser doesn't know about. Sweet. (Did anyone here know that installing Flash gives websites the ability to write to and read from your hard disk? I didn't.) A reliable and capable local store. Botmasters must *love* Flash. -Bill ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: perl and network addresses
Jason Stephenson [EMAIL PROTECTED] writes: I'd suggest looking up how to configure VLANs on whatever you're using for a router.--I know you mentioned a FreeBSD firewall earlier. You must have missed the part where I said we don't have a router, we're migrating to a comletely new network, and, most importantly: Ultimately, the ability to support network addition using something wacky like a /19 is entirely my own intellectual curiosity :) -- Seeya, Paul ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
Re: Flash as spyware
Bill Sconce [EMAIL PROTECTED] writes: (Did anyone here know that installing Flash gives websites the ability to write to and read from your hard disk? I didn't.) Yup, discovered it when I was debugging why flash wasn't working for some inexplicable and long since forgotten reason. But if you watch /tmp when you click on a flash widget to load it, you'll see a new file pop into existence, which you can the copy off and run whenever you want :) But this is nothing new. Websites have always had the ability to write to local disk, you're browser does that for them, how do you think your .[mozilla,galeon, whatever]/cache directory fills up with so much crap? You tell your browser to go download all that crap at somepoint... From there it's trivial to craft a website to stick things in different locations based on the OS type *your* browser communicates to the server. When you connect, you open a socket, the server is at the other end, it now just needs to stuff things down that pipe and ask your browser to deposit it somewhere on your system. How do you think all those ActiveXploits work :) -- Seeya, Paul ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss
