[GNHLUG] MerriLUG Nashua, Thur 21 Jun, Nonlinear Video Editing by Doerbeck (YouTube Watch Out!)
Who : Christoph Doerbeck, BLU, Red Hat What : Nonlinear Video Editing on Linux with Cinelerra Where: Martha's Exchange Day : Thur 21 June **Next Week** Time : 6:00 PM for grub, 7:30 PM for discussion :: Overview Want to hit the 20K viewer mark on YouTube? Nonlinear video editing allows you to rearrange the frames in a movie to any order. Leave some out. Add some from another clip. Change order of scenes. Run backwards. Whatever! Using all opensource tools, Christoph Doerbeck will demonstrate how to take common home video, edit/composite and produce a DVD which can play in any common DVD player. Tool chain will include dvgrab, Cinelerra, mjpegtools and dvdauthor. The majority of the time will be spent on Cinelerra. RSVP to Jim Kuzdrall for dinner to assure adequate seating. !!! If you are not a Regular Attendee (50%), please let me know. !!! Driving directions: http://wiki.gnhlug.org/twiki2/bin/view/Www/PlaceMarthasExchange Thanks, Jim Kuzdrall [EMAIL PROTECTED] ___ gnhlug-announce mailing list [EMAIL PROTECTED] http://mail.gnhlug.org/mailman/listinfo/gnhlug-announce/ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Non Linux but network tech question
Hope no one objects to the non Linux question? My small local library has a web site which is hosted for them. On their site there is a link to bring up their catalog online. The system for this database is located inside the library. Here is the problem. The local ISP they use, Comcast, gives them a free connection, but the address is dynamic. When on that time the address renews and is not the same, they link to the online catalog cannot be reached. Looking it over the link is specified by an IP address. I recall out of my cob webbed memory some sort of work around for such a problem might exist? The library setup is as follows, -cable modem -linksys wireless router -internal systems all on a 192.1.168.xxx address They did not ask me but I am trying to figure out a possible solution to try and cure this minor problem for them. Thanks Sean P.S. Just returned to the list after a long time, so again, I hope that the non Linux part is not a problem? Thanks again all. ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Non Linux but network tech question
The Linksys wireless router may well run Linux, so you might be OK. :-) Dynamic DNS is the proper solution to this, and there are several free onces out there that the Linksys should work with - basically the router tells the dynamic DNS host what its IP is everytime it changes. I think http://zoneedit.com/ is supported by the router, depends on FW version etc. so you'd have to research. One gotcha, unfortunately, is that in several (many) versions of the firmware the update client fails to update if the address does not change for a while, and the dynamic DNS services will drop the record if not updated for a while (a month or so for the one I use, dyndns.org I think.) --DTVZ On 6/14/07, sean [EMAIL PROTECTED] wrote: Hope no one objects to the non Linux question? My small local library has a web site which is hosted for them. On their site there is a link to bring up their catalog online. The system for this database is located inside the library. Here is the problem. The local ISP they use, Comcast, gives them a free connection, but the address is dynamic. When on that time the address renews and is not the same, they link to the online catalog cannot be reached. Looking it over the link is specified by an IP address. I recall out of my cob webbed memory some sort of work around for such a problem might exist? The library setup is as follows, -cable modem -linksys wireless router -internal systems all on a 192.1.168.xxx address They did not ask me but I am trying to figure out a possible solution to try and cure this minor problem for them. Thanks Sean P.S. Just returned to the list after a long time, so again, I hope that the non Linux part is not a problem? Thanks again all. ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Non Linux but network tech question
sean wrote: They did not ask me but I am trying to figure out a possible solution to try and cure this minor problem for them. I also use DynDNS. They provide a free service, as long as you update your records regularly (do read the site for the terms of service). There are clients they link to on their website that let you set this up automatically. Some probably even run in Windows. P.S. Just returned to the list after a long time, so again, I hope that the non Linux part is not a problem? Welcome back! -- Ted Roche Ted Roche Associates, LLC http://www.tedroche.com ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Non Linux but network tech question
On 6/14/07, sean [EMAIL PROTECTED] wrote: Hope no one objects to the non Linux question? Trust me, you're a lot more on-topic than a lot of message traffic on this list. :) The system for this database is located inside the library. The local ISP they use, Comcast, gives them a free connection, but the address is dynamic. Ideally, they would get a static IP address, and solve a lot of problems. It might be worth asking Comcast for that. Failing that, as others have suggested, DNS Update, AKA Dynamic DNS, is the way to go. Have something on their site notice the IP address change, and update a DNS record. Use said DNS record in the link to the website. There are many such services. Like others, I use DynDNS Inc, because (1) it's free for personal use and (2) it works fairly well. I get a name like notmyrealname.dnsalias.org, and then I can SSH into my home network (also on a Comcast feed). -linksys wireless router Many LinkSys routers include support for DNS Update in the stock firmware. However, that feature is also notoriously unreliable. (It tends to update once, at power-on, then never again.) Many of those routers run Linux internally, and you can install third-party firmware to improve the situation. If you post the specific model *and hardware version* (check the label), you can post it here, or check the list at http://openwrt.net yourself. Another option is to install software on a computer inside their private network. That software will watch for an IP address change, and then send the DNS Update. Such software is available for both MS Windows and Linux. This might be easier than messing around with LinkSys firmware. -- Ben ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Warning: Ubuntu kernel update renames hard drives.
Just a warning to folks running Ubuntu Fiesty Fawn. A couple of days ago a new kernel update was released (2.6.20-16). This update apparently includes changes to how PATA drives are named in /dev. My PATA drive used to be /dev/hda before the update. Now it's /dev/sdc. I wish I had known that before I wrote to /dev/sdc, assuming it was my CF card reader... :[ Scott -- Scott Garman sgarman at zenlinux dot com ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: USB scanner + embedded Linux box = network scanner?
Ben Scott wrote: We've got an HP LaserJet 3380 All-In-One with a JetDirect card. It does have network scan functionality. The problem is, to trigger the scan, you have to use a web UI. Which means a computer. Which means the user has to walk to the unit, load their originals, walk back to their computer, start the scan, and walk back again to pick up the originals. And hope it didn't jam, or that someone else didn't move them in the meantime. Ah, you're right. I didn't appreciate that some people work in an office where everything isn't within reach. Contrast this with our Konica P/S/C units, on which you just hit a couple front panel buttons, and it uploads the results to a network folder (via FTP). (They also support email.) Of course, they cost over $4K each. Thanks anyway, though. :) Glad I could provide the right answer to wrong question ;) Someone asked the question on SlashDot last year (http://ask.slashdot.org/article.pl?sid=06/03/13/2043236) and got a batch of annoying answers. There may be a clue in the pile, though: a mention of scanadf, part of SANE: http://www.martoneconsulting.com/sane-scanadf.html I note the OfficeJet has a Scan To button which, when pushed, helpfully points out that some software has to be running remotely to support it. In Winders, it will office a Fax-to-Email, Fax-to-File, Fax-To-PDF or some such combination. With HP being so helpful with their HPOJ and HPLIJ projects, I wonder if they've published that protocol somewhere. Mighty strong Google-foo is needed to find the right page about HP Scan-To... -- Ted Roche Ted Roche Associates, LLC http://www.tedroche.com ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Recommended PCI gigabit ethernet card?
I have a cheap gigabit nic ($20) in my system and suspect it is slowing down throughput so I'd like to upgrade it. I did the google linux thing. Half were error reports, half were from 2004, half were sales reviews, etc (yeah, that 100%). The Linux HOWTOs are 2004 and earlier so there's barely a mention of gigabit networking. It needs to be PCI I'm running Fedora with Fedora kernels and don't want to compile drivers. What do people use, see as fast/compatible? ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Recommended PCI gigabit ethernet card?
Now that Intel has released the HW specs for the e1000 family (generally having 825nn part numbers) I can recommend it. The driver is mature and in wide use and offers full support for useful features like bonding, ipv6 and huge packets. Esoterica: it even has a (compile time) option that causes it to go into polled (rather than interrupt driven) mode while traffic is above a given threshold, the intent being to reduce interrupt overhead... ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
RE: Recommended PCI gigabit ethernet card? OT: PC Gigabit Through put Question
I'm not the best with these bit/byte problems so I might be wrong, but. A PCI bus can pass 1056 bits a second (32 bit, 33 mhz) tcp/ip over head is somewhere around %20 (1056 * .8 = 844.8) What can you reasonably expect a pci gigabit card to give you for through put? PCI Buses are generally shared (save high end server boards) right? On top of that, if hdparm says timed disk writes are around 40MB, what could you see for sustained download speeds? Maybe a static cached webpage could saturate a gig connection, sustained 5 gig http download couldn't right? Anyone have real world answers for that stuff? Patrick From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Buskey Sent: Thursday, June 14, 2007 12:36 PM To: gnhlug-discuss@mail.gnhlug.org Subject: Recommended PCI gigabit ethernet card? I have a cheap gigabit nic ($20) in my system and suspect it is slowing down throughput so I'd like to upgrade it. I did the google linux thing. Half were error reports, half were from 2004, half were sales reviews, etc (yeah, that 100%). The Linux HOWTOs are 2004 and earlier so there's barely a mention of gigabit networking. It needs to be PCI I'm running Fedora with Fedora kernels and don't want to compile drivers. What do people use, see as fast/compatible? ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Does the White Russian 0.9 DynDNS client suck just as much?
Date: Mon, 14 May 2007 18:49:07 -0400 From: Ben Scott [EMAIL PROTECTED] On 5/14/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: OpenWRT was recommended as a way of getting around using Linksys's broken DynDNS client. But this system seems just as broken! I suspect something *is* broken in the OpenWRT DDNS subsystem. But I was able to get the symptom (i.e., DynDNS warning about my expiring DNS entry) to go away by fiddling with it. I've been too lazy/busy to dig into root cause yet. I wasn't sure if the problem wasn't just me until now. I guess it's not just me. Anyway, here's what I did. I logged into a root shell on the LinkSys box. I edited/created the /etc/ez-ipupdate/ez-ipupdate.conf file to look like this: interface=vlan1 service-type=dyndns user=notmyusername:notmypassword pid-file=/var/run/ez-ipupdate.pid cache-file=/etc/ez-ipupdate/ez-ipupdate.cache host=notmyhostname.dnsalias.org The problem here seems to be that the ez-ipupdate package is integrated with neither the webif nor the rest of OpenWRT. When the ez-ipupdate package is installed, it installs the config file as /etc/ez-ipupdate.conf. The contents of the file in no way reflect the settings in the webif, and the cache-file setting at the bottom conflicts with where OpenWRT stores the cache file. This is ironic (you might say insidiously misleading) because this setting is in the section of the file labeled Do not change the lines below. Just rm the whole friggin file: rm /etc/ez-ipupdate.conf. You have to create you own /etc/ez-ipupdate/ez-ipupdate.conf file using the output from: # ez-ipupdate --help # command usage help # echo help | ez-ipupdate -c -# config file help Looking at /etc/init.d/S52ez-ipupdate, it looks like putting the following in /etc/ez-ipupdate/ez-ipupdate.conf should suffice: interface=vlan1 service-type=dyndns user=notmyusername:notmypassword host=notmyhostname.dnsalias.org max-interval=216 Creating this file and manually executing # /etc/init.d/S52ez-ipupdate start at least causes messages concerning successful update to appear in the system log and webif DynDNS configuration page. Note that the settings on the DynDNS page of the webif DONT ACTUALLY CONFIGURE ez-ipupdate! Only the Enable/Disable switch on that page has any effect on real life events. All the other settings (service type, account name, password, hostname, update interval) just hang out in nvram and are never actually used! Configuring ez-ipupdate on OpenWRT's White Russian 0.9 is about as counterintuitive as it could be. ez-ipupdate (though it offers a -q quiet switch) doesn't offer any kind of debugging output. It does write limited satus information to the syslog. But, by default on OpenWRT, does not syslog to /var/log/messages (or any file under /var/log!). Instead, to see the syslog, you have to view the appropriate page on the webif. Even there, the information supplied is extremely limited! So, without access to any debugging output, I'm not even sure if what I've done will convince ez-ipupdate to update my DynDNS on schedule. I gues I'll find out in 5 days. :) # date; uptime Mon May 14 09:18:51 EDT 2007 09:18:51 up 21:16, load average: 0.00, 0.00, 0.00 I didn't reboot the box at all yesterday, so the 21:16 is wrong nonetheless. I suspect the uptime is correct, and the box has only been up for 21 hours. The real question is: Why did the box reboot? The nominal I suspect that OpenWRT automagically rebooted me (without notice) after $arbitrary_configuration_change. OpenWRT seems to like doing that. On a mostly unrelated note, DynDNS emails me when my hostname is about to expire, so I've never lost the name due to any issues with LinkSys's firmware, OpenWRT's firmware, or anything else. I've always had a chance to tweak things first. You may want to look into getting the same email warning for yourself. Yeah, I get that warning also. However, when you *think* you've gotten DynDNS configured but really *haven't*, your hostname is just as expired! It would be nice if they mailed such warnings a couple more times, i.e. daily. ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Organization providing low cost computing pushing Microsoft???
- I heard a story on the radio today about an organization in Manchester and Nashua called Donation Networks. - Their website is: http://www.donationnetworks.org/ - They have a program that they call Computers in Every Home with the mission statement of: The Computers In Every Home Program is a statewide initiative geared towards providing personal computer access and training to NH's disadvantaged, youth, low-income, at-risk-youth and senior adults etc The program seeks to build capacity among residents by giving them the opportunity of owning computer systems at very nominal fees or at no cost with community service. Parents may apply for a PC for their kids School Homework needs. By engaging in this project, we hope to overcome the barriers people may face in accessing education, employment opportunities and social services needs. - This piqued my interest since it seems that they want to bring low cost computing to as may people as possible. I was disappointed though, when I scrolled to the bottom of the page and saw this: --- 5. Software: The system comes with Microsoft Application software. By using the software, eligible recipient agrees to be bound by all terms of this Recipient Agreement. If Eligible Recipient does not agree to the terms of this Recipient Agreement, it must not use any of the software. --- It seems to me that an organization that is looking to provide low/no cost computing to disadvantaged citizens would be able to provide the best service with a FOSS solution rather than by an expensive, proprietary system. Is anybody familiar with this organization?? Are they pushing Microsoft due to ignorance of FOSS, obstinacy, or something else?? Thoughtsfeedback appreciated. Mark ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Maintaining RHEL3 after RHAT support expires
I'm working with some RHEL3 boxes that until recently were kept up to date via subscription to the RedHat Network but that subscription has now expired, so I wonder if there is some repository of freely available packages that are perfectly compatible and %100 sync'd with whatever RHAT is supplying as bugfixes and updates for RHEL3. In other words, if I install something from that repository I like to still be able to say with a straight face that it's an RHEL3 box. FWIW, here's /etc/redhat-release from the system in question: Red Hat Enterprise Linux WS release 3 (Taroon Update 8) ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Organization providing low cost computing pushing Microsoft???
On 6/14/07, Mark Mcsweeney [EMAIL PROTECTED] wrote: It seems to me that an organization that is looking to provide low/no cost computing to disadvantaged citizens would be able to provide the best service with a FOSS solution rather than by an expensive, proprietary system. I can't speak to this Donation Networks in particular, but I know Microsoft offers fairly big discounts to NPOs, and the Bill and Melinda Gates Foundation will often pick up the rest of the tab, so the software is often free. Microsoft isn't stupid; they'll give away their products as long as it strengthens their overall position (i.e., perpetuates their lock-in). Which is not to say DN isn't worth targeting for FOSS advocacy. Contract administration and license management have costs, too. With FOSS, those just disappear. And there's always the whole Freedom aspect. While most people seem to be quite happy to be sheep, there's still a significant minority who value their freedom. Would anyone else here be interested in working on a FOSS advocacy project targeting DN? -- Ben ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Recommended PCI gigabit ethernet card? OT: PC Gigabit Through put Question
On 6/14/07, Flaherty, Patrick [EMAIL PROTECTED] wrote: I'm not the best with these bit/byte problems so I might be wrong, but. A PCI bus can pass 1056 bits a second (32 bit, 33 mhz) tcp/ip over head is somewhere around %20 (1056 * .8 = 844.8) What can you reasonably expect a pci gigabit card to give you for through put? The author of O'Reilly Unix Backup Restore says you should expect a maximum throughput around 50MB/s for backups over gigabit. PCI Buses are generally shared (save high end server boards) right? Yep. Higher end systems will have multiple PCI buses. The Sun v890 has 4 seperate buses and you can distribute the cards based on On top of that, if hdparm says timed disk writes are around 40MB, what could you see for sustained download speeds? Maybe a static cached webpage could saturate a gig connection, sustained 5 gig http download couldn't right? Anyone have real world answers for that stuff? What if you're downloading to RAM disk? When I've been doing my network measurements I've been going from /dev/zero to /dev/null to eliminate the storage speed effects. ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Maintaining RHEL3 after RHAT support expires
On Thu, Jun 14, 2007 at 02:47:52PM -0400, Michael ODonnell wrote: that subscription has now expired, so I wonder if there is some repository of freely available packages that are perfectly compatible and %100 sync'd with whatever RHAT is supplying as bugfixes and updates for RHEL3. In other words, if I install something from that repository I like to still be able to say with a straight face that it's an RHEL3 box. I guess that depends on how much you can bend the truth and keep a straight face. If a package didn't come from Red Hat's build system, it's not a RHEL package. I don't know of anyone freely redistributing the RH-built update packages. You can come REALLY close by switching the system to CentOS: http://wiki.centos.org/FAQ/CentOS3#q5 At that point it's technically CentOS 3, not RHEL3. It's the same source RPMs as RHEL, but rebuilt by an external group (usually with a delay of up to a few days). For the purposes of application compatibility it shouldn't matter. For support contracts it probably matters quite a bit. -- Matt Brodeur RHCE [EMAIL PROTECTED] http://www.nexttime.com PGP ID: 2CFE18A3 / 9EBA 7F1E 42D1 7A43 5884 560C 73CF D615 2CFE 18A3 Oops. My brain just hit a bad sector. pgpKXbGys1hcf.pgp Description: PGP signature ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Does the White Russian 0.9 DynDNS client suck just as much?
On 6/14/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: The problem here seems to be that the ez-ipupdate package is integrated with neither the webif nor the rest of OpenWRT. Hmmm. It was better than that for me. Have you installed the X-WRT extensions to OpenWRT? The webif^2 subsystem is a big improvement, to the point where I didn't use plain OpenWRT much. With X-WRT, I was able to find a Dynamic DNS UI area, install the package from there, and configure it from there. I also found initscripts and such which were attempting to the control ez-ipupdate program. Obviously, something still wasn't working, but it *was* doing *something*. When the ez-ipupdate package is installed, it installs the config file as /etc/ez-ipupdate.conf. I just checked, and I do have an /etc/ez-ipupdate.conf file on my home router. But it's stale and looks completely stock. I suspect it's just being ignored. You have to create you own /etc/ez-ipupdate/ez-ipupdate.conf file ... Mine was already created, although I did add to it. Note that the settings on the DynDNS page of the webif DONT ACTUALLY CONFIGURE ez-ipupdate! Only the Enable/Disable switch on that page has any effect on real life events. All the other settings (service type, account name, password, hostname, update interval) just hang out in nvram and are never actually used! Interesting. I'm pretty sure mine did *something* to the config file. My conclusion was that it just didn't do enough. ez-ipupdate (though it offers a -q quiet switch) doesn't offer any kind of debugging output. FWIW, there is a foreground mode, but I found it still didn't give any useful information. But, by default on OpenWRT, does not syslog to /var/log/messages (or any file under /var/log!). It's a flash ROM filesystem. Flash has a limited number of write cycles. Writing logs to a flash filesystem will eventually result in a dead part, sometimes rather quickly. That's why it doesn't do that. I suggest using syslog's network logging feature to send the messages to a real computer (with a hard disk). Even there, the information supplied is extremely limited! Yah. ez-ipupdate does indicate in the log when it has sent a DNS update, though. So you can at least find out if it *thinks* it's doing something. So, without access to any debugging output, I'm not even sure if what I've done will convince ez-ipupdate to update my DynDNS on schedule. Check the DynDNS web UI for your domain name. It should indicate the date of the last update. I know mine does. I suspect that OpenWRT automagically rebooted me (without notice) after $arbitrary_configuration_change. OpenWRT seems to like doing that. With X-WRT (again, I didn't stick with plain OpenWRT much), I found that it usually didn't reboot after a config change. But it may be you're just changing different things than I was. X-WRT also offered a multi-level Save/Review/Commit/Reject system for config changes, so you could see what it was going to do, and batch things together, so you at least get a single reboot. -- Ben ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Organization providing low cost computing pushing Microsoft???
Date: Thu, 14 Jun 2007 15:50:26 -0400 From: Ben Scott [EMAIL PROTECTED] Which is not to say DN isn't worth targeting for FOSS advocacy. Contract administration and license management have costs, too. With FOSS, those just disappear. And there's always the whole Freedom aspect. While most people seem to be quite happy to be sheep, there's still a significant minority who value their freedom. Would anyone else here be interested in working on a FOSS advocacy project targeting DN? A computer in every household? That would HAVE to be FOSS. I would seriously no longer be able to sse my species with ANY respect if the disadvantaged, youth, low-income, at-risk-youth and senior adults etc ended up being forced to use Micro$oft products. You can count me in. ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Recommended PCI gigabit ethernet card? OT: PC Gigabit Through put Question
On 6/14/07, Jeff Macdonald [EMAIL PROTECTED] wrote: What can you reasonably expect a pci gigabit card to give you for through put? I thought I read somewhere gig ether should be on the motherboard, not PCI. Many modern motherboards do include one or more gig Ether ports. Sometimes, these are just connected to internal PCI buses. Sometimes, they're even all on the same PCI bus. Sometimes they use internal PCI Express ports. Sometimes they hook directly into a special path on one of the core chips. You can get varying levels of performance here, depending on the specifics. There's PCI in multiple flavors (32-bit vs 64-bit, 33 MHz vs 66 MHz), PCI-X (some sort of extension to the classic PCI bus), and PCI Express (totally different electrically; serial rather than parallel). I do agree with Patrick Flaherty and Tom Buskey that the NIC may not be the constraint (although a cheap chipset can certainly kill your performance). You need to worry about bus bandwidth (for NIC and disk controller), disks, disk controller, core logic, IP stack, application software, kernel tuning, and sometimes even RAM and CPU (depending on the workload). And you need to worry about that on both computers. Cable and switch quality can also matter, too. A bad cable can cause all manner of problems. And I've heard of cheap gig switches which couldn't actually forward data that fast. -- Ben ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Recommended PCI gigabit ethernet card? OT: PC Gigabit Through put Question
PCI-32 theoretical maximum throughput would be: (((33 million cycles) * 32 bits) / 8 = 132 million bytes ) per second ...but since that's unattainable for more than a dozen ticks or so I'm guessing that 2/3 of that (88 million) is a more reasonable maximum. Meanwhile, I (think I) have heard that the rule-of-thumb for Enet overhead is something like: bitrate / 12 = bytes-per-second ...so for GigE we'd get: ~1,000,000,000 bits per second / 12 = ~83,333,333 ...which is in the same ballpark as that PCI guesstimate. ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Maintaining RHEL3 after RHAT support expires
On Thu, June 14, 2007 4:00 pm, Matt Brodeur said: I guess that depends on how much you can bend the truth and keep a straight face. If a package didn't come from Red Hat's build system, it's not a RHEL package. I don't know of anyone freely redistributing the RH-built update packages. You can come REALLY close by switching the system to CentOS: http://wiki.centos.org/FAQ/CentOS3#q5 At that point it's technically CentOS 3, not RHEL3. It's the same source RPMs as RHEL, but rebuilt by an external group (usually with a delay of up to a few days). For the purposes of application compatibility it shouldn't matter. For support contracts it probably matters quite a bit. How long until Red Hat EOL's RHEL3? I have a RHEL3 server that was due to expire next week, and I renewed it for another 3 years. When RHEL3 is EOL'ed, I imagine I'll have to upgrade it to a supported version, like RHEL5. -- John Abreau / Executive Director, Boston Linux Unix IM: [EMAIL PROTECTED] / [EMAIL PROTECTED] / [EMAIL PROTECTED] / [EMAIL PROTECTED] Email [EMAIL PROTECTED] / WWW http://www.abreau.net / PGP-Key-ID 0xD5C7B5D9 PGP-Key-Fingerprint 72 FB 39 4F 3C 3B D6 5B E0 C8 5A 6E F1 2C BE 99 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: QuickBooks for Linux
Ben Scott [EMAIL PROTECTED] writes: On 6/13/07, Bill Sconce [EMAIL PROTECTED] wrote: Intuit has been famous for a rigid attitude of if Linux is in the picture we don't support it. Intuit Inc. (Nasdaq: INTU) announced today that businesses will soon be able to operate QuickBooks Enterprise Solutions(r) from Linux servers. Oh, hell, we could do that before. You just had to lie and tell tech support it was a Windows server. Right, this would be far more impressive if they were announcing a release of QuickBooks which *ran* on Linux. *That* would be cool. Of course, having spoken to their tech support people, I'm not sure I want them supporting that :) -- Seeya, Paul ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Maintaining RHEL3 after RHAT support expires
I guess that depends on how much you can bend the truth and keep a straight face. If a package didn't come from Red Hat's build system, it's not a RHEL package. I don't know of anyone freely redistributing the RH-built update packages. Sorry; I should have been clearer. I'm not out to bend the truth or to defraud anybody, it's just that describing something as an RHEL3 box implies a certain set of features, package versions and such. If I dragged an arbitrary set of libs, apps and kernels on board I might end up with a vastly improved machine, but somebody who was expecting the RHEL3 context might be unhappy with it. I should probably be saying something like RHEL3-compatible... Thanks to all for the pointers. ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Maintaining RHEL3 after RHAT support expires
On Thu, Jun 14, 2007 at 04:19:47PM -0400, John Abreau wrote: How long until Red Hat EOL's RHEL3? I have a RHEL3 server that was due to expire next week, and I renewed it for another 3 years. When RHEL3 is EOL'ed, I imagine I'll have to upgrade it to a supported version, like RHEL5. It'll be supported until October 2010 (7 years from its release in 2003). RHEL2.1 would go until 05/2009, RHEL4 until 02/2012, and RHEL5 is 03/2014. That's assuming no one decides to extend the support terms again. See: http://www.redhat.com/security/updates/errata/ -- Matt Brodeur RHCE [EMAIL PROTECTED] http://www.nexttime.com PGP ID: 2CFE18A3 / 9EBA 7F1E 42D1 7A43 5884 560C 73CF D615 2CFE 18A3 Anytime things appear to be going better, you have overlooked something. pgpEdTrDTnUvj.pgp Description: PGP signature ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Does the White Russian 0.9 DynDNS client suck just as much?
Date: Thu, 14 Jun 2007 16:05:37 -0400 From: Ben Scott [EMAIL PROTECTED] On 6/14/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: The problem here seems to be that the ez-ipupdate package is integrated with neither the webif nor the rest of OpenWRT. Hmmm. It was better than that for me. Have you installed the X-WRT extensions to OpenWRT? The webif^2 subsystem is a big improvement, to the point where I didn't use plain OpenWRT much. With X-WRT, I was Yes, I followed pretty close to exactly the instructions you gave in your OpenWRT talk. Note that the settings on the DynDNS page of the webif DONT ACTUALLY CONFIGURE ez-ipupdate! Only the Enable/Disable switch on that page has any effect on real life events. All the other settings (service type, account name, password, hostname, update interval) just hang out in nvram and are never actually used! Interesting. I'm pretty sure mine did *something* to the config file. My conclusion was that it just didn't do enough. After installing and configuring ez-ipupdate, all through the webif^2 UI, there WAS no /etc/ez-ipupdate/ez-ipupdate.conf on my filesystem. I had to read the /etc/init.d/S52ez-ipupdate in order to find out that it was using /etc/ez-ipupdate/ez-ipupdate.conf rather than /etc/ez-ipupdate.conf. Even there, the information supplied is extremely limited! Yah. ez-ipupdate does indicate in the log when it has sent a DNS update, though. So you can at least find out if it *thinks* it's doing something. Update shmupdate. When running ez-ipupdate in the foreground, it told me that members.dyndns.org says that your IP address has not changed since the last update. That begs the questions, WTF is an update, did I just do one, and is what I just did what DynDNS requires once every month? Is an update when the IP is reported, when a new IP is reported, or when the IP is just checked and determined to be the same? Without debugging output, it's impossible to tell what this obnoxiously terse and cryptic output really means. (Yes, I know of another, non-Linux, operating system which does this too.) Check the DynDNS web UI for your domain name. It should indicate the date of the last update. I know mine does. Of course, logging into the DynDNS UI is an easy way to manage my DynDNS entries. The whole point of installing OpenWRT/ez-ipupdate (with which fact I opened my initial post on this subject) was to avoid having to do this by automating the update process! When I first pulled up the DynDNS webif page, it gave me the option of installing one of two different dyndns clients. Maybe next time, I'll try the other one and see if it works any better. ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
RE: Recommended PCI gigabit ethernet card? OT: PC Gigabit Through putQuestion
Somebody broke out the slide rule -=] patrick -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Michael ODonnell Sent: Thursday, June 14, 2007 4:18 PM To: gnhlug-discuss@mail.gnhlug.org Subject: Re: Recommended PCI gigabit ethernet card? OT: PC Gigabit Through putQuestion PCI-32 theoretical maximum throughput would be: (((33 million cycles) * 32 bits) / 8 = 132 million bytes ) per second ...but since that's unattainable for more than a dozen ticks or so I'm guessing that 2/3 of that (88 million) is a more reasonable maximum. Meanwhile, I (think I) have heard that the rule-of-thumb for Enet overhead is something like: bitrate / 12 = bytes-per-second ...so for GigE we'd get: ~1,000,000,000 bits per second / 12 = ~83,333,333 ...which is in the same ballpark as that PCI guesstimate. ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Linux Exchange server replacement.
Sorry to dredge it all up, but there was a discussion some time back about an app that was supposed to be a drop in replacement for ES including all of the calendaring crap. Does anyone remember what that was? TIA -- Time flies like the wind. Fruit flies like a banana. Stranger things have .0. happened but none stranger than this. Does your driver's license say Organ ..0 Donor?Black holes are where God divided by zero. Listen to me! We are all- 000 individuals! What if this weren't a hypothetical question? steveo at syslang.net ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Linux Exchange server replacement.
On 6/14/07, Steven W. Orr [EMAIL PROTECTED] wrote: Sorry to dredge it all up, but there was a discussion some time back about an app that was supposed to be a drop in replacement for ES including all of the calendaring crap. Does anyone remember what that was? There have been two that I've heard mention of that actually looked interesting: Scalix and Zimbra. Scalix is a descendant of HP OpenMail. It's gotten decidedly mixed reviews on this list (check the archives). Zimbra is completely unknown to me. -- Ben ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Linux Exchange server replacement.
The two that I know of off the top of my head are: Scalix http://www.scalix.com Zimbra http://www.zimbra.com Both have their caveates. HTH, Kenny -- Original message -- From: Steven W. Orr [EMAIL PROTECTED] Sorry to dredge it all up, but there was a discussion some time back about an app that was supposed to be a drop in replacement for ES including all of the calendaring crap. Does anyone remember what that was? TIA -- Time flies like the wind. Fruit flies like a banana. Stranger things have .0. happened but none stranger than this. Does your driver's license say Organ ..0 Donor?Black holes are where God divided by zero. Listen to me! We are all- 000 individuals! What if this weren't a hypothetical question? steveo at syslang.net ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Linux Exchange server replacement.
I installed and tested Zimbra.. It didn't have support for a few things we needed at the time (like truly shared calendars). It's my understanding that this has been corrected in the recent versions. They have a free demo you can test out. The web interface is very impressive. On Jun 14, 2007, at 5:25 PM, [EMAIL PROTECTED] wrote: The two that I know of off the top of my head are: Scalix http://www.scalix.com Zimbra http://www.zimbra.com Both have their caveates. HTH, Kenny -- Original message -- From: Steven W. Orr [EMAIL PROTECTED] Sorry to dredge it all up, but there was a discussion some time back about an app that was supposed to be a drop in replacement for ES including all of the calendaring crap. Does anyone remember what that was? TIA -- Time flies like the wind. Fruit flies like a banana. Stranger things have .0. happened but none stranger than this. Does your driver's license say Organ ..0 Donor?Black holes are where God divided by zero. Listen to me! We are all- 000 individuals! What if this weren't a hypothetical question? steveo at syslang.net ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
RE: OT: PC Gigabit Throughput Question
What can you reasonably expect a pci gigabit card to give you for throughput? Anyone have real world answers for that stuff? When I worked on Tru64 Unix (yeah, I know, not Intel, not AMD, not Linux, but was using PCI-??), I was able to saturate GbE with NFS traffic, at least reading from the files cached on the server. Some customers could saturate it while reading from disk. A 1500 byte Ethernet message is 12,000 bits, and hence only 12 usec of wire time. If you need full performance and can use Jumbo Frames of 9,000 bytes (72 usec) so much the better. I generally used UDP, despite some interesting problems with UDP and fast links, and 48 KB read sizes, so protocol overhead would be 100+ bytes for NFS, 8 for UDP (only one of those per NFS read reply), 20 for IP and 14 for Ethernet (one for each of 6 IP fragments) which translates into not much. If you are looking for that level of performance, one of my mantras is no good GbE switch. Even some of the top-name, top-shelf switches can only buffer a few milliseconds of data. Instead of cheap DRAM, they often use FIFOs, much smaller and more expensive. I suspect most switches can handle most Windows and desktop Linux systems, but if you can crank up TCP window sizes (I think I used 512KB) and see lots of retransmits, cast a jaundiced eye at the switch. This isn't really supercomputer stuff any more. I needed 2-3 Alpha CPUs to saturate the wire, so a single Core Duo ought to be plenty adequate these days. -Ric Werme ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Linux Exchange server replacement.
There's also PostPath. Here is the extent of my knowledge of it: http://www.postpath.com/ --DTVZ On 6/14/07, Travis Roy [EMAIL PROTECTED] wrote: I installed and tested Zimbra.. It didn't have support for a few things we needed at the time (like truly shared calendars). It's my understanding that this has been corrected in the recent versions. They have a free demo you can test out. The web interface is very impressive. On Jun 14, 2007, at 5:25 PM, [EMAIL PROTECTED] wrote: The two that I know of off the top of my head are: Scalix http://www.scalix.com Zimbra http://www.zimbra.com Both have their caveates. HTH, Kenny -- Original message -- From: Steven W. Orr [EMAIL PROTECTED] Sorry to dredge it all up, but there was a discussion some time back about an app that was supposed to be a drop in replacement for ES including all of the calendaring crap. Does anyone remember what that was? TIA -- Time flies like the wind. Fruit flies like a banana. Stranger things have .0. happened but none stranger than this. Does your driver's license say Organ ..0 Donor?Black holes are where God divided by zero. Listen to me! We are all- 000 individuals! What if this weren't a hypothetical question? steveo at syslang.net ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Recommended PCI gigabit ethernet card? OT: PC Gigabit Through put Question
Tom Buskey [EMAIL PROTECTED] writes: On top of that, if hdparm says timed disk writes are around 40MB, what could you see for sustained download speeds? Maybe a static cached webpage could saturate a gig connection, sustained 5 gig http download couldn't right? Anyone have real world answers for that stuff? What if you're downloading to RAM disk? What if you're building a router? The traffic never hits the disk, so drive performance is irrellevent here. -- Seeya, Paul ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: Recommended PCI gigabit ethernet card?
Tom Buskey [EMAIL PROTECTED] writes: It needs to be PCI I'm running Fedora with Fedora kernels and don't want to compile drivers. What do people use, see as fast/compatible? We've standardized on Intel's chipset. Most of these on the motherboard, but a few systems which need 3 nics have 1 PCI card in them (I'm fairly sure they're PCI-X). 2.6.X (X 16) has good support for these. A module is available for 2.4.x, but needs to be dropped in as a replacement for the one which ships with the kernel, and it can't be compiled statically into the kernel. -- Seeya, Paul ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
