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Swap = 0
by cahit Eyigünlü 13 Apr '10

13 Apr '10

My server returning an error sth. like swap = 0 then locking httpd and all other services is this normal this is a virtual machine and i give it 3 gb ram and 4cpu of i7 920 i have 1 gbit connection on this machine finally i have 4000+ clients at one time :S

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How to log separate files or directories for centralizing SysLog server ?
by James Corteciano 13 Apr '10

13 Apr '10

Hi All, I have three server. server0 is centralized logging server, server1 and server2 are remote client servers. How can I properly configure the syslog in server0 to log the two servers in different separated files/directories. Example, server1 will be logged at /var/log/syslog/server1.log of server0 and /var/log/syslog/server2.log for server2 as well. Is there need of little tweaking for syslog.conf ? Thanks. James

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Installing a .ko file?
by Slack-Moehrle 12 Apr '10

12 Apr '10

Hi All, I am trying to add a 3Ware 9500S-8 RAID controller to a CentOS 5.4 box. I have the drivers from 3Ware and they seem to be a .ko file (which I presume is like a .kext on OSX) How do I install these? Searched turn up people talking about Kernel panics with .ko's but I dont see anything that points to to installing one so I can use the card. Best, -Jason

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How long will CENTOS 4.X automatic resync to to time server???
by mcclnx mcc 12 Apr '10

12 Apr '10

We have several CENTOS 4 and 5 servers. ALL CENTOS servers have NTP setup to sync time server. Several days ago due to power outage all servers are reboot. Due to DNS server did NOT up quickly, CENTOS servers start up and can NOT find time server. For CENTOS 5.X servers, it did quickly resync to time server after 30 minutes. For CENTOS 4.X servers, it have been 3 days still NOT sync to time server. I know I can run "service ntpd restart" to force server sync to time server, but I like to know how long it take for CENTOS 4.X automatic resync to time server. Thanks.

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OT: Dropbox - Fedora Core 9 RPM will work on CentOS 5.4?
by Lanny Marcus 12 Apr '10

12 Apr '10

Dropbox has an RPM for Fedora Core 9 (x86). I am running CentOS 5.4 on my Desktop, which I believe is based on Fedora Core 6. Are the libraries Fedora Core 9 uses substantially different than those CentOS 5.4 uses? If Dropbox had an SRPM available, I would Download that and Rebuild, but I'm sure it is Proprietary and they won't release an SRPM to me. TIA! Lanny -------------------------------------- Magazine subscriptions Largest discount Credit/Debit Card Check Pay Pal http://www.lowcostmagazines.com/

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'p' in boot selector & going into single-user
by ken 12 Apr '10

12 Apr '10

On boot, when I hit the F12 key to bring up the boot menu, the screen displays the various kernels and other boot options. In the text below this menu it says I can hit 'p' to bring up a menu with other options. I've done this with the last two boot-ups and no other menu or options appear. Is something missing? (I also tried Alt-p, Shift-p, Ctrl-p and a few other keys and there's no change onscreen.) I'd like to know also how to select single user mode, but haven't found a way to do that. Thanks much.

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mysterious weekly shutdown
by Frank Cox 12 Apr '10

12 Apr '10

I have a Centos 5.4 machine that has, for the past two weeks, apparently been shut off over the weekend. It's just sitting there turned off on Monday morning and when someone hits the power switch it comes right back on and everything works again. This happened last weekend, and again over this past weekend. Here is /var/log/messages from shortly before it apparently shut down this weekend. Can anyone tell me what is or might be going on? Apr 10 11:01:27 answeringmachine vgetty[6012]: message keep, length=00:00:20, name='', caller=none, dev=ttyACM0, pid=6012 Apr 10 11:19:10 answeringmachine vgetty[6095]: message keep, length=00:00:24, name='', caller=none, dev=ttyACM0, pid=6095 Apr 10 11:43:56 answeringmachine vgetty[6134]: message keep, length=00:00:11, name='', caller=none, dev=ttyACM0, pid=6134 Apr 10 12:22:34 answeringmachine mgetty[6029]: fax dev=ttyS1, pid=6029, caller='none', name='', id='', +FHNG=074, pages=0/0, time=00:00:51 Apr 10 12:43:49 answeringmachine gconfd (freeads-3524): Exiting Apr 10 12:43:49 answeringmachine gdm[2872]: Master halting... Apr 10 12:43:49 answeringmachine pcscd: winscard.c:304:SCardConnect() Reader E-Gate 0 0 Not Found Apr 10 12:43:50 answeringmachine shutdown[2872]: shutting down for system halt Apr 10 12:43:50 answeringmachine mgetty[6262]: failed dev=ttyS1, pid=6262, got signal 15, exiting Apr 10 12:43:50 answeringmachine mgetty[2874]: failed dev=ttyS2, pid=2874, got signal 15, exiting Apr 10 12:43:50 answeringmachine vgetty[2877]: failed dev=ttyACM1, pid=2877, got signal 15, exiting Apr 10 12:43:50 answeringmachine vgetty[6183]: failed dev=ttyACM0, pid=6183, got signal 15, exiting Apr 10 12:43:51 answeringmachine smartd[2854]: smartd received signal 15: Terminated Apr 10 12:43:51 answeringmachine smartd[2854]: smartd is exiting (exit status 0) Apr 10 12:43:52 answeringmachine avahi-daemon[2769]: Got SIGTERM, quitting. Apr 10 12:43:52 answeringmachine avahi-daemon[2769]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::21c:c0ff:fee3:f1b1. Apr 10 12:43:52 answeringmachine avahi-daemon[2769]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.0.6. Apr 10 12:43:52 answeringmachine mountd[2588]: Caught signal 15, un-registering and exiting. Apr 10 12:43:52 answeringmachine kernel: nfsd: last server has exited Apr 10 12:43:52 answeringmachine kernel: nfsd: unexporting all filesystems Apr 10 12:43:57 answeringmachine ntpd[2532]: ntpd exiting on signal 15 Apr 10 12:43:57 answeringmachine nm-system-settings: disconnected from the system bus, exiting. Apr 10 12:43:57 answeringmachine kernel: nm-system-setti[3083]: segfault at 0000000000000000 rip 0000000000000000 rsp 00007fffb3916778 error 14 Apr 10 12:43:57 answeringmachine rpc.statd[2349]: Caught signal 15, un-registering and exiting. Apr 10 12:43:57 answeringmachine auditd[2264]: The audit daemon is exiting. Apr 10 12:43:57 answeringmachine kernel: audit(1270925037.732:154): audit_pid=0 old=2264 by auid=4294967295 Apr 10 12:43:57 answeringmachine pcscd: pcscdaemon.c:572:signal_trap() Preparing for suicide Apr 10 12:43:58 answeringmachine pcscd: hotplug_libusb.c:376:HPRescanUsbBus() Hotplug stopped Apr 10 12:43:58 answeringmachine pcscd: readerfactory.c:1379:RFCleanupReaders() entering cleaning function Apr 10 12:43:58 answeringmachine pcscd: pcscdaemon.c:532:at_exit() cleaning /var/run Apr 10 12:43:59 answeringmachine kernel: Kernel logging (proc) stopped. Apr 10 12:43:59 answeringmachine kernel: Kernel log daemon terminating. Apr 10 12:44:00 answeringmachine exiting on signal 15 -- MELVILLE THEATRE ~ Melville Sask ~ http://www.melvilletheatre.com

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how long NTP sync to time server on CENTOS 4.X????
by mcclnx mcc 12 Apr '10

12 Apr '10

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Re: [CentOS] everything seems to hang, but system is idle? [SOLVED]
by Rudi Ahlers 12 Apr '10

12 Apr '10

On Mon, Apr 12, 2010 at 1:50 PM, JohnS <jses27(a)gmail.com> wrote: > > On Sun, 2010-04-11 at 15:48 +0200, Rudi Ahlers wrote: > >> Yes, I think it could be a problematic iscsi config. Now that I think >> of it, the server wasn't rebooted in about 2 or 3 months and I did >> some iscsi testing a while ago, but with a recent power outage it >> could have enabled / a faulty configuration, I just rebooted the >> server again, managed to the remove iscsi this time, and will see if >> this solves the problem. > --- > > Well along with that I would do a file system check. Then if it keeps > on stop just the nmbd service and not smbd for cifs sharing. > > John > > _______________________________________________ So far everything seems to be fine, apart from my Cobbler problem (see other thread). rsync has been running very well for the past few hours (have been deleting & restoring a lot of stuff to check ) so it was probably the improper iscsi mount that was giving issues. Thanx for all the help :) -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532

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Performance problems with XFS on Centos 5.4
by Bernhard Gschaider 12 Apr '10

12 Apr '10

Hi! During the last weeks I experienced some performance problems with a large file-system on XFS basis. Sometimes for instance ls is painfully. Immidiatly afterwards ls on the same directory is immidiate. I used strace on this ls and found that during the first ls the lstat-calls need approx 0.02s each while during the second ls the are two orders of magnitude faster. Googling around I stumbled upon some messages similar like this http://www.opensubscriber.com/message/linux-xfs@oss.sgi.com/1355060.html which have in common a) they're from around 2006 b) they suggest to increase a mount-option ihashsize. This mount option is listed as deprecated in the current kernel-doc So my question: does anyone have experience with that kind of performance problem? Do you think it is a XFS problem or are there some other tuning parameters in the kernel that could be modified for instance via /proc? The reason why I'm asking here is that it is a production file-system so I would be very unpopular if I experiment too much (a couple of reboots is OK ;) ) Bernhard PS: the situation got worse during the last weeks when the file-system increased in size, so the option that some kind of buffer now is too small and I'm experiencing some kind of thrashing seems very likely to me

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