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DJB's daemontools package
by Robert Moskowitz 09 Sep '08

09 Sep '08

Is this available for Centos? If so where?

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CentOS 4 & autofs 4.1.3
by John Kordash 09 Sep '08

09 Sep '08

For those of you using CentOS 4, is anyone having trouble with autofs 4.1.3? I'm seeing (with 60second unmount timeout) what appears to be an apparent race condition where a script touches an automount directory at about (the same second according to logs) the same time the unmount is triggered, and the script then gets a read error. Sure, increasing the unmount timeout will reduce the occurrence rate, but if this really is a race, then it won't eliminate it. In looking at the CHANGELOG between autofs 4.1.3 and 5.0.1rc2, there have been tons of changes including some references to timing issues. However nothing is jumping out, and there are many changes. Is it conventional wisdom that the 4.1.3 autofs has 'issues' and folks routinely move up to autofs 5 on CentOS 4.x? Thanks, -John

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RE: [CentOS] Need help with an odd issue I am experiencing
by David Petruzzella 09 Sep '08

09 Sep '08

Not a laptop it is a server with dual nics mtu set at 1500, 1 nic directly to the cable modem the other to my lan. ---------- Original Message ---------------------------------- From: "Joseph L. Casale" <JCasale(a)activenetwerx.com> Reply-To: CentOS mailing list <centos(a)centos.org> Date: Mon, 8 Sep 2008 23:46:40 -0600 >>I have a server with dual nic's running centos 5.2 1 nic connects to the >>cable modem, which has 15m d and 2m up, but speed tests barely come back at >>5mb down including road runner's internal speed test. I hook up my laptop to >>the same modem, same port, using the same cable and I get 17mb down. I have >>ruled out iptables, nics (because same result on both nics), cables, cable >>modem(with a brighthouse rep) any suggestions would be greatly appreciated. >>Thanks. > >So I gather the nics aren't teamed from your wording, maybe MTU is set sub >optimal for your particular ISP? What OS on your laptop? Wrong MTU can have >a significant effect such as this. > >jlc >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos > ________________________________________________________________ Sent via the WebMail system at mail.dsli.com

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RE: [CentOS] Need help with an odd issue I am experiencing
by David Petruzzella 09 Sep '08

09 Sep '08

---------- Original Message ---------------------------------- From: "Joseph L. Casale" <JCasale(a)activenetwerx.com> Reply-To: CentOS mailing list <centos(a)centos.org> Date: Tue, 9 Sep 2008 12:40:48 -0600 >>Not a laptop it is a server with dual nics mtu set at 1500, 1 nic directly to the cable modem the other to my lan. > >MTU has nothing to do with laptops, it has to do with TCP/IP. >Aside from a previous posters duplex setting (good catch on his part) its >possible that MTU is an issue. Some ISP's do some silly stuff. You >*are* going into a cable modem (which I read as accessing the internet >through some means other than a high-end fiber/etc connection where oddities >wouldn't likely exist:>) > >jlc >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos > The MTU setting of 1500 is optimal for that connection from what I read and according to tweak tests and I was just clarifying that the pc in question was not a laptop I am aware that MTU is TCP related and I agree sometimes there are funny things that happen with that, based on other tests I have done with other devices kind of rules out MTU it seems to be more a duplexing issue or driver issue I think. Both myself and the cable guy have hooked a laptop to the cable modem all beit they are windows laptops with the same settings and speed tests were normal. ________________________________________________________________ Sent via the WebMail system at mail.dsli.com

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Need help with an odd issue I am experiencing
by David Petruzzella 09 Sep '08

09 Sep '08

I have a server with dual nic's running centos 5.2 1 nic connects to the cable modem, which has 15m d and 2m up, but speed tests barely come back at 5mb down including road runner's internal speed test. I hook up my laptop to the same modem, same port, using the same cable and I get 17mb down. I have ruled out iptables, nics (because same result on both nics), cables, cable modem(with a brighthouse rep) any suggestions would be greatly appreciated. Thanks.

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Re: [CentOS] Need help with an odd issue I am experiencing
by David Petruzzella 09 Sep '08

09 Sep '08

---------- Original Message ---------------------------------- From: MHR <mhullrich(a)gmail.com> Reply-To: CentOS mailing list <centos(a)centos.org> Date: Tue, 9 Sep 2008 10:52:24 -0700 >On Tue, Sep 9, 2008 at 8:18 AM, David Petruzzella <sektor(a)dsli.com> wrote: >> Thanks I read about that, but I am having a hard time forcing duplex, I don't remember the exact error it was giving me at the moment but from what I read it looks like a driver issue. > >Would you please follow this email list's conventions and bottom post? > >Thank you. > >mhr >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos > Sure sorry about that at work and what not its the opposite. ________________________________________________________________ Sent via the WebMail system at mail.dsli.com

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RE: [CentOS] Need help with an odd issue I am experiencing
by David Petruzzella 09 Sep '08

09 Sep '08

Thanks I read about that, but I am having a hard time forcing duplex, I don't remember the exact error it was giving me at the moment but from what I read it looks like a driver issue. ---------- Original Message ---------------------------------- From: "RobertH" <roberth(a)abbacomm.net> Reply-To: CentOS mailing list <centos(a)centos.org> Date: Tue, 9 Sep 2008 07:30:30 -0700 > >> >> I have a server with dual nic's running centos 5.2 1 nic connects to the >> cable modem, which has 15m d and 2m up, but speed tests barely come back >> at 5mb down including road runner's internal speed test. I hook up my >> laptop to the same modem, same port, using the same cable and I get 17mb >> down. I have ruled out iptables, nics (because same result on both >> nics), cables, cable modem(with a brighthouse rep) any suggestions would >> be greatly appreciated. Thanks. >> > >David, > >IME, it is typically (yet not always) a duplex and/or speed issue between >the NIC port and the switch or device it is talking too. > >man ethtool > >ethtool eth0 > >and check to see what speed and duplex are currently in use... > >if duplex and/or speed are off I typically hard code a *managed* switch and >the centos box on whatever ports as necessary by adding this line or one >similar to it > >ETHTOOL_OPTS="speed 100 duplex full autoneg off" > >To this and other interface files as necessary > >/etc/sysconfig/network-scripts/ifcfg-eth0 > >At this point a reboot will take care of it or if you don't want to reboot >now, Then I would make a little script called downup.sh > >ifdown eth0 >ifup eth0 > >and then I chmod 750 that script and then call it like this if from remote > >./downup.sh & > >So I don't lose connectivity... > >There is probably a more elegant command like way to do that... > >Be careful if remote box and YMMV > > - rh > > >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos > ________________________________________________________________ Sent via the WebMail system at mail.dsli.com

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NFS exporting a GFS mount point
by Yanagisawa, Koji 09 Sep '08

09 Sep '08

Hello, I have a storage offering some 11 TB of space. I'd happily use ext3 and NFS export to 4 client machines, but 8 TB seems to be the tested maximum. I'd really like one mount point for the whole 11 TB. Since GFS offers lock_nolock option for local mounting, I'm assuming it's not so out of line to NFS export this GFS mount point. Thoughts and inputs appreciated. --Koji

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RE: [CentOS] Need help with an odd issue I am experiencing
by David Petruzzella 09 Sep '08

09 Sep '08

I was thinkging drivers myself, I'm not bonding the nics btw. ---------- Original Message ---------------------------------- From: "John" <jses27(a)gmail.com> Reply-To: CentOS mailing list <centos(a)centos.org> Date: Tue, 9 Sep 2008 01:34:32 -0400 > > > >David Petruzzella Wrote: > >-----Original Message----- >From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf >Of David Petruzzella >Sent: Monday, September 08, 2008 10:09 PM >To: centos(a)centos.org >Subject: [CentOS] Need help with an odd issue I am experiencing > >I have a server with dual nic's running centos 5.2 1 nic connects to the >cable modem, which has 15m d and 2m up, but speed tests barely come back at >5mb down including road runner's internal speed test. I hook up my laptop to >the same modem, same port, using the same cable and I get 17mb down. I have >ruled out iptables, nics (because same result on both nics), cables, cable >modem(with a brighthouse rep) any suggestions would be greatly appreciated. >Thanks. > >********************************************** >JohnStanley Writes: > >Maybe trying the vender specific drivers for the Nic Card in question on the >CentOS Server may solve the problem. Or a possibilty is if your Bonding or >teaming the nics there may be configuration issues in the way you have them >set up. Try just one Nic card by itself with out Bonding. You can use >"miitool" to set or force the transfer rate of the nic in question; see "man >miitool" Since you do say you have dual nics try them both separtly like I >stated (Without The Bonding). > >JohnStanley > >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos > ________________________________________________________________ Sent via the WebMail system at mail.dsli.com

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Gnome Desktop Questions?
by James B. Byrne 09 Sep '08

09 Sep '08

I have a couple of oddities that I hope someone here can clarify for me. OS = CentOS-5.2 all updates applied to date. 1. On the gnome desktop in the top panel (or menu bar) I have an icon for "System Monitor" which runs the application "gnome-system-monitor". On my other desktop CentOS-5.2 system I have the same thing. However, one one system the icon gives me a real time (ok 5 sec intervals) display of cpu load as cyan and white bar graphs . On the other system the same application gives me a static, sickly green and yellow, display of an oscilloscope. How do I get the dynamic version of the icon? I have checked and both systems are running the same version of the applicvation from the same location. /usr/bin/gnome-system-monitor --version = 2.16.0 2. On the same two systems, the first (the one with the dynamic display) has entries on the system dropdown menufor locking the display, logging out and shutting down. On the second all I have is logout and suspend. Going to the Gnome Menu manager does not give me any option to add the missing items. Can somebody tell me how to get these minor, but for me very desirable, changes made to the second system? The only difference between the two systems that I can recall is that one (the first) was upgraded from 4.6 while the second (the more limited unit) was a clean install. Sincerely, -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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