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Grub boot loader?
by hadi motamedi 01 Feb '10

01 Feb '10

Dear All On my CentOS server , the '/boot/grub/menu.lst' has the right configuration but when I reboot my CentOS server I cannot enter to grub edit menu to edit my boot kernel by pressing the 'e' key . Can you please confirm if I can activate it through issuing the followings : #grub-install /dev/hdax Is it a safe procedure to try with? Please confirm. Thank you

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Browser related question
by Rajagopal Swaminathan 01 Feb '10

01 Feb '10

Greetings, How does one monitor if a site is being accessed using browser? IOW, I just want to know if a user has launched a session thru Firefox. I basically want to know if a user has tried to access the webserver and unable to reach it and log such instances. I am using cron and curl to seperately monitor the link. Any clues? Centos 5.2/Gnome/Firefox 3.0.16 Regards Rajagopal

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DynDNs.org compatible server scripts
by Rajagopal Swaminathan 01 Feb '10

01 Feb '10

Greetings, I know this mail is slightly OT. But my DNS server and and all other compute nodes (currently around 80) run Centos. Has anybody come across some package script which can be used to listen to request from DynDNS.org clients which can be found commonly in the devices? I have a scenario wherein many devices having Dynamic IP scattered across a geographical region. most have an embedded Dyndns.com client which can be enabled. I configure a Private Dynamic DNS server at a central location. Now I need something which will listen to the request thrown out by the devices and update Dynamic DNS Server. TIA Regards, Rajagopal

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APC Smart-ups "status codes" (slightly OT)
by m.roth＠5-cent.us 01 Feb '10

01 Feb '10

We got replacement battery "kits" for some of our APC UPS' (Smart-UPS, rackmount). I put them into one tray (it's for an RBC 43, which takes 8, and weighs a ton), and put it in, and let it charge. Idiot "change battery" led stays on. So I hit the test button, it discharges very rapidly (a good number of servers on this), and the led stays on. For some reason, apcupsd's USB test fails, with an HIDDEV i/o error. So I got rid of the weird APC usb cable, and put in one of their serial cables, and run the "smart" test (the USB does more), and get results showing everything's fine. But the idiot light's still on. So, looking at all the values that the "apcsmart" choice can give me, the first thing is UPS status. I've been googling for a while, and can't find a single reference to it. Anyone have a link to somewhere that will give me the status codes (and their meaning)? Thanks in advance. mark

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CentOS 5.4 64-bit: Java web browser plugin for 64-bit FireFox?
by Robert Heller 01 Feb '10

01 Feb '10

Does there exist *anywhere* a Java web browser plugin for 64-bit FireFox? The SUN 1.6<mumble> JDK (jdk-6u18-linux-amd64.rpm) does NOT include the Java web browser plugin library. java-1.6.0-openjdk-1.6.0.0-1.2.b09.el5.x86_64.rpm does not have one either. Should I install the *32-bit* SUN 1.6<mumble> JDK and use the 32-64 bit wrapper? I've searched the web and read the wiki (which only shows installing the 32-bit Java web browser plugin). -- Robert Heller -- 978-544-6933 Deepwoods Software -- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows heller(a)deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/

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Apache MPM-ITK
by Andrey Garkin 01 Feb '10

01 Feb '10

Hi All! Wished to ask. I have put: apache+php+mysql All works perfectly, only there is one question. The matter is that apache something works from the user apache, and when I закачиваю on the site through php the form the owner of the gone file to become apache. How it can be corrected? Esteemed on the Internet there is under Debian the apache with the module mpm-itk and how to be in CentOS 5.4?

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perl question
by Jerry Geis 01 Feb '10

01 Feb '10

I am trying to run a perl script that said it needs Net::SMPP I ran this: your_host]# *perl -MCPAN -e shell* cpan shell -- CPAN exploration and modules installation (v1.76) ReadLine support enabled cpan> *install Net::SNMP seemed to work. no errors reported. however when I run perl I still get the same error saying needs ./sendmessage.pl Can't locate Net/SMPP.pm in @INC (@INC contains: /usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/5.8.8 .) at ./sendmessage.pl line 18. BEGIN failed--compilation aborted at ./sendmessage.pl line 18. What else do I need? Jerry *

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Re: [CentOS] monitoring a workstation
by fabien faye 01 Feb '10

01 Feb '10

Hi, For that you have a lot of solution : "top" or "vmstat 1" on the console for a global overview But if you need load and cpu utilisation per user you have to use ac. Exemple : ac -d -p ffaye 12.86 Jan 6 total 12.86 fwadmin 0.00 ffaye 8.77 Jan 7 total 8.77 ffaye 0.24 Jan 19 total 0.24 ffaye 0.79 Today total 0.79 If you want more information follow this link : http://generationip.com/documentation/system-documentation/113-howto-on-psa… After that if you need to do that remotely and generate graph, take a look on cacti or nagios. Best regards Fabien FAYE RHCE www.generationip.com Free network tools & HOWTO for centos and Redhat ----- Original Message ----- From: "MOKRANI Rachid" <Rachid.MOKRANI(a)ifp.fr> To: "CentOS mailing list" <centos(a)centos.org> Sent: Monday, February 1, 2010 11:08:10 AM Subject: [CentOS] monitoring a workstation Hi, I need to monitor a workstation (Centos 5 x86_64). I need to obtain informations about : - cpu utilization per user, per a period, how many days per user, Any ideas about a good and simple free tool ? Regards. __________________________ Ce message (et toutes ses pièces jointes éventuelles) est confidentiel et établi à l'intention exclusive de ses destinataires. Toute utilisation de ce message non conforme à sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. L'IFP décline toute responsabilité au titre de ce message. This message and any attachments (the message) are confidential and intended solely for the addressees. Any unauthorised use or dissemination is prohibited. IFP should not be liable for this message. Visitez notre site Web / Visit our web site : http://www.ifp.fr __________________________ _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

1 0

Skype and problem with ALSA mixer driver?
by Andrew 01 Feb '10

01 Feb '10

Having used skype successfully in the past with previous CentOS versions, I haven't yet been able to get it working fully with CentOS 5.3 - the playback sound works OK but I can't get the mic working. I previously used the skype version installed with yum from the skype repo but thought maybe this was faulty, so have just installed the static version (cd skype_static-2.1.0.81). However, the mic still doesn't work and I've notice the following (repeated) error messages on the command line (currently this version has to be executed from the command line): snd_pcm_avail_update() returned a value that is exceptionally large: 203032 bytes (1057 ms). Most likely this is a bug in the ALSA driver. Please report this issue to the ALSA developers. snd_pcm_avail_update() returned a value that is exceptionally large: 201176 bytes (1047 ms). Most likely this is a bug in the ALSA driver. Please report this issue to the ALSA developers. snd_pcm_avail_update() returned a value that is exceptionally large: 199280 bytes (1037 ms). Most likely this is a bug in the ALSA driver. Please report this issue to the ALSA developers. ..........etc Does anybody have any information about this issue/bug and any idea how to solve the problem? Thanks, Andy

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Multiple RAID support in CentOS?
by Victor Padro 01 Feb '10

01 Feb '10

Hello, I was wondering if someone could help me, I'm putting together a Server for personal use, I want to virtualize a few servers(mail, web, ssh) and use it as a NAS, but I have a question if I can use Multiple RAID Arrays using the following HW: Intel Xeon Quad Core X3430 ASUS P7F-M LGA 1156 - LSI MegaRAID(integrated) - HighPoint RocketRAID 2640x1 2 Hitachi 500GB HDDs 4 Hitachi 1TB HDDs I want to use one array with the 2 500GB HDDs in RAID1 for the OS and for some VMs, and the other 4 1TB HDDs I want to create an array in RAID5 or RAID10 for file sharing across my home Network. I found a guide but it's a little bit outdated and it's for Debian... Do you have any other pointer I can read/use? TIA. -- Linux User #452368 http://twitter.com/vpadro "Everything that irritates us about others can lead us to an understanding of ourselves"

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