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realtime backup
by CentOS List 19 Feb '09

19 Feb '09

Hi, I had a cfml application running on mysql database. Can some suggest a realtime backup solution via ftp say every 5mins without damaging the database? Thanks regards

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OT: Oracle client logging issue
by Tom Brown 19 Feb '09

19 Feb '09

Hi We have an app on CentOS 5 that is in pyton and uses some form of thin oracle client called oracle-instantclient-basic, this error is more towards that client i think but if anyone has seen this before then it would be great to hear about it. The basic issue is that we are getting lots of sqlnet.log 's on the filesystem and we dont seem to be ablr to configure the location of that log as there is no oracle configuration for the client as such it seems in terms of tnsnames etc that you'd get with the full client. Anyone ever used this client before or know how to direct its logs somewhere else? thanks

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Question about sub-domains
by Bo Lynch 18 Feb '09

18 Feb '09

We currently have a web server that is running apache on cent 5.2. We are upgrading our student info system so that it allows web access and the vendor (powerschool) is stating that this has to be a registered domain or a sub domain and only runs on Windows Server. My question is can you tell apache to point a subdomain to a diiferent IP address. For example, Our domain is currently amelia.k12.va.us. If someone goes to powerschool.amelia.k12.va.us it points to another IP other than itself? I have no experience with sub-domains so any input would be greatly appreciated. Thanks -- Bo Lynch

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fotran 77 with amd64 technology
by Pavel Ritto 18 Feb '09

18 Feb '09

What is the right way to compile a fortran 77 file using the amd64 bits technology? If I write f77 -m64 -march=opteron file.f and then run a.out, the time of execution is so slow as if it I had´nt called to 64bits option. what is happening?

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chkconfig path
by Geert Batsleer 18 Feb '09

18 Feb '09

Hi all! I'm trying to install FOG (an opensource ghostlike backup/rollout server) on a centos 5 box but at the end of the isntaller script it can't find chckconfig altough it's in /sbn and I run the (redhat specific install) script as root. How can I make sure chckconfig gets found? Tried adding the full path in the script to /sbin/chckconfig but got the same error. Regards, Geert ------------------------------ ------------------------------------------------ * Checking package: perl...OK * Checking package: perl-Crypt-PasswdMD5...OK * Checking package: lftp...OK Configuring services. * Setting up fog user...Exists * Setting up and starting MySql../lib/redhat/functions.sh: line 440: chkconfig: command not found ...Failed!

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Re: [CentOS] GFS + Restarting iptables
by Sven Kaptein | MARS websolutions 18 Feb '09

18 Feb '09

>>>> Dear List, >>>> >>>> I have one last little problem with setting up an cluster. My gfs >>>> Mount will hang as soon as I do an iptables restart on one of the >>>> nodes.. >> >>> Undoubtedly someone else with more experience with GFS will give you an >>> answer, but to me this makes me think ip_conntrack stuff gets cleared >>> out and sessions have to reestablish themselves. >>> >>> Ray >> >> Ray, >> >> Thanks for your fast answer and getting me into the right direction. This >> sounds like a possible solution, but I have no clue how to fix it. I googled >> already a lot on ip_conntrack + gfs, but don't see a possible solution >> coming up. >> >> Can someone/you please help me a little bit more with the issue? >> >> Thanks a lot! >> Sven > Are your GFS mounts and your cluster on different sides of the firewall? > > Maybe you can do something simple like a tunnel between the clusters and the > mounts. Should be easier and safer than punching holes in the firewall. Or put > a separate subnet or vlan just for the GFS traffic. Uhm... I have the cluster running on a different vlan then my ISCSI traffic. Is that a problem? I would not like to put my cluster communication on the other vlan since thats iscsi dedicated now. I have now figured out that it isn't the restarting IP tables causing the trouble, but the issue is as follows: - Calling Group_tool dump This will cause groupd to run at 100% cpu. Dooing a strace on this process tells me its dooing some poll in an infinite loop: poll([{fd=1, events=POLLIN}, {fd=2, events=POLLIN}, {fd=7, events=POLLIN}, {fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=10, events=POLLIN}, {fd=12, events=POLLIN}, {fd=14, events=POLLIN}, {fd=18, events=POLLIN}, {fd=17, events=POLLIN}, {fd=20, events=POLLIN}, {fd=21, events=POLLIN, revents=POLLNVAL}, {fd=-1}], 13, -1) = 1 - Calling Group_tool dump gfs This will cause gfs_controld to run at 100% cpu. Exactly the same as the groupd (strace): poll([{fd=2, events=POLLIN}, {fd=3, events=POLLIN}, {fd=6, events=POLLIN}, {fd=7, events=POLLIN}, {fd=8, events=POLLIN}, {fd=11, events=POLLIN}, {fd=12, events=POLLIN, revents=POLLNVAL}, {fd=12, events=POLLIN, revents=POLLNVAL}], 8, -1) = 2 Sometimes my Mount will hang, but sometimes it will just continue normally. I can imagine this has to do with the amount of data going to the gfs Mount. So I guess it isn't really an iptables problem.. But im trying to debug that a little bit more as well.. Any clues? Thanks!! Sven

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After electric breaking: HARDWARE ERROR Kernel panic
by Vnpenguin 18 Feb '09

18 Feb '09

Hi all, After an electric breaking, my server (Centos 5.2 x86_64 with all updates) can not boot. The error message on screen is: ----------------------------------------------------------------------------------------------------------- Memory for crash kernel (0x0 to 0x0) notwithin permissible range <0> HARDWARE ERROR CPU 1: Machine Check Exception: 7 Bank 4: .... RIP 10:<.....> TSC 133eab63c9 ADDR 24fe3d028 This is not a software problem! Run through mcelog --ascii to decode and contact your hardware vendot Kernel panic - not syncing: Uncorrected machine check ------------------------------------------------------------------------- Anyone could tell me how to fix this please ! Help ! Thank you

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Check out my Facebook profile
by Ceejay Cervantes 18 Feb '09

18 Feb '09

Hi CentOS, I set up a Facebook profile where I can post my pictures, videos and events and I want to add you as a friend so you can see it. First, you need to join Facebook! Once you join, you can also create your own profile. Thanks, Ceejay To sign up for Facebook, follow the link below: http://www.facebook.com/p.php?i=570089480&k=55LUPZR6W46MXBDCRAZ3T&r

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reading sar data
by muhammad panji 18 Feb '09

18 Feb '09

Hi, I have a problem reading sar data. I have some server but no monitoring tools like cacti or nagios on it. every end of month I got the sar log manually and have to generate report for it but I have no idea how to read it. on this page :http://pagesperso-orange.fr/sebastien.godard/tutorial.html i found there is tool called sadf, can i use it on CentOS 4 or it just available on Centos 5? I found sadf on centos5 but not on centos 4. are there any tools that could be used to generate a graphic from a month historical sar data? best regards, -- Muhammad Panji http://sumodirjo.wordpress.com

2 1

Practical experience with NTLM/Windows Integrated Authentication [Apache]
by Sven 18 Feb '09

18 Feb '09

Hi folks I wish to migrate Windows IIS webserver to CentOS. Killer-Feature is SSO with Windows Integrated Authentication[0]. Anyone have experience with such a setup and can say a few sentences how to do that and if its stable? kind regards Sven Aluoor (Please CC me I am not on the list) [0] http://bayimg.com/image/hanogaabi.jpg

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