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too many open files
by Jerry Geis 19 Aug '10

19 Aug '10

I am getting an error about to many open files. I tried to "echo 500000 > /proc/sys/fs/file-max" The number is there now, but I continue to get the error. Is there something else to do? Jerry

3 2

Power failure diagnosis?
by Mark 19 Aug '10

19 Aug '10

This morning between 07:10 or so and 08:10 I discovered that my PC had shut itself off. I thought it was due to a power failure becuase I never turn it off without a good reason, and it had been running (and playing sounds) until it wasn't. My roommate/landlord tells me that the only anomaly he observed was that our router had lost its internet connection (via a cable modem, which was still running fine), and his computer, a laptop, and clocks all seemed to be running normally. I checked all the logs in /var/log and there's nothing in there other than the restart - no temp warnings or anything. The machine has been up and running smoothly since the last time I shut it off (to move), a week ago last Friday (8/6). I don't have a UPS or BB, so is there any way that I can diagnose this further? Here's another weird thing - 'dmesg | grep Aug' shows this: Linux version 2.6.18-194.11.1.el5 (mockbuild(a)builder10.centos.org) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48)) #1 SMP Tue Aug 10 19:05:06 EDT 2010 EDAC MC: Ver: 2.0.1 Aug 10 2010 EDAC amd64_edac: Ver: 3.2.0 Aug 10 2010 That's probably when I last restarted after installing the new kernel. But: $ date Wed Aug 18 11:52:23 PDT 2010 And /var/log/messages shows this: : Aug 18 06:35:57 marichter dhclient: DHCPREQUEST on eth0 to 192.168.0.2 port 67 Aug 18 06:35:57 marichter dhclient: DHCPACK from 192.168.0.2 Aug 18 06:35:57 marichter dhclient: bound to 192.168.0.100 -- renewal in 5154 se conds. Aug 18 06:44:28 marichter smartd[3829]: Device: /dev/sdb, 4294967295 Currently u nreadable (pending) sectors Aug 18 06:44:28 marichter smartd[3829]: Device: /dev/sdb, 4294967295 Offline unc orrectable sectors Aug 18 08:10:45 marichter syslogd 1.4.1: restart. Aug 18 08:10:45 marichter kernel: klogd 1.4.1, log source = /proc/kmsg started. Aug 18 08:10:45 marichter kernel: Linux version 2.6.18-194.11.1.el5 (mockbuild@b uilder10.centos.org) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48)) #1 SMP Tue Aug 10 19:05:06 EDT 2010 : What's up with that??? (Not the disk issue - that's a Seagate problem that, fortunately, means nothing, and yes, I've gone through that one before....) Why doesn't dmesg show the most recent boot? marichter 2.6.18-194.11.1.el5 #1 SMP Tue Aug 10 19:05:06 EDT 2010 x86_64 GNU/Linux centos-release-5-5.el5.centos.x86_64 Thanks. Mark

5 6

What is the best strategy for updating CentOS from 4 to 5?
by Todd Cary 18 Aug '10

18 Aug '10

No doubt I have waited just a little too long, but I think it is time to upgrade before it is not supported. My server is not heavily used (mostly for viewing images) and my Admin skills are better than beginner but NOT guru. Todd -- Ariste Software Petaluma, CA 94952 http://www.aristesoftware.com

5 6

Re: [CentOS] Wrong disk size problem.
by Semih Gokalp 18 Aug '10

18 Aug '10

Thanks all. I will check and read this option. > On 18 August 2010 10:37, Laurent Wandrebeck <l.wandrebeck(a)gmail.com> wrote: >> On Wed, 18 Aug 2010 10:18:39 +0300 >> Semih Gokalp <semihgokalp(a)gmail.com> wrote: >> >>> Hi,we have Centos 5.4 server and according to me we have strange problem. >>> >>> Disk size and other indormation like below.Normally,md2 partition >>> should have 46GB free disk size but available value is zero.Why it >>> show zero ? If you help me,I will be happy. >>> >> <snip> >> Answer is probably in reserved blocks for root. >> See tune2fs -m option. >> HTH, >> -- >> Laurent >> > > > > -- > Iyi calismalar.Basarilar... > Semih Gokalp > Istanbul/Turkiye > -- Iyi calismalar.Basarilar... Semih Gokalp Istanbul/Turkiye

1 0

Wrong disk size problem.
by Semih Gokalp 18 Aug '10

18 Aug '10

Hi,we have Centos 5.4 server and according to me we have strange problem. Disk size and other indormation like below.Normally,md2 partition should have 46GB free disk size but available value is zero.Why it show zero ? If you help me,I will be happy. df -h Filesystem Size Used Avail Use% Mounted on /dev/md1 19G 2.1G 16G 12% / /dev/md2 880G 834G 0 100% /data /dev/md0 243M 24M 208M 11% /boot tmpfs 2.0G 0 2.0G 0% /dev/shm df -k Filesystem 1K-blocks Used Available Use% Mounted on /dev/md1 19840804 2215556 16601112 12% / /dev/md2 922019416 874435436 0 100% /data /dev/md0 248783 23904 212035 11% /boot tmpfs 2057656 0 2057656 0% /dev/shm df -i Filesystem Inodes IUsed IFree IUse% Mounted on /dev/md1 5124480 44654 5079826 1% / /dev/md2 237961216 42010 237919201 1% /data /dev/md0 64256 45 64211 1% /boot tmpfs 514414 1 514413 1% /dev/shm mdadm --detail /dev/md2 /dev/md2: Version : 0.90 Creation Time : Mon Jun 8 18:14:31 2009 Raid Level : raid1 Array Size : 951827072 (907.73 GiB 974.67 GB) Used Dev Size : 951827072 (907.73 GiB 974.67 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 2 Persistence : Superblock is persistent Update Time : Wed Aug 18 10:01:27 2010 State : active Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 UUID : a0bf9972:b46617a2:bf37d07b:5d34b930 Events : 0.51 Number Major Minor RaidDevice State 0 8 2 0 active sync /dev/sda2 1 8 18 1 active sync /dev/sdb2

3 2

how to use dhcpd and bind with windows 2008 ad domain model?
by Eero Volotinen 18 Aug '10

18 Aug '10

This might be a bit offtopic, but: How to run bind and dhcpd as slave on windows 2008 ad domain. Is it possible? -- Eero, RHCE

4 4

Date drift and ntpd
by Jason Pyeron 17 Aug '10

17 Aug '10

We have a local time server and all of our machines are pointed at it for the time. How can the clock drift by a day and a half? [root@devserver21 ~]# date Fri Aug 13 14:43:29 EDT 2010 [root@devserver21 ~]# rdate -s 192.168.1.67 [root@devserver21 ~]# date Thu Aug 12 07:02:39 EDT 2010 [root@devserver21 ~]# cat /etc/ntp.conf | grep -v ^# | grep -v ^$ restrict default nomodify notrap noquery restrict 127.0.0.1 server 192.168.1.67 server 192.168.1.66 server 192.168.1.65 server 127.127.1.0 # local clock fudge 127.127.1.0 stratum 10 driftfile /var/lib/ntp/drift broadcastdelay 0.008 keys /etc/ntp/keys -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us - - Principal Consultant 10 West 24th Street #100 - - +1 (443) 269-1555 x333 Baltimore, Maryland 21218 - - - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- This message is copyright PD Inc, subject to license 20080407P00.

10 21

apache rewrite
by Craig White 17 Aug '10

17 Aug '10

Is there some easy way to rewrite just the base URL to another URL but leave all other URL's unmolested? i.e. http://www.example.com = rewrite to another URL http://www.example.com/files = deliver from the assigned subdirectory obviously this... Redirect / http://www.other_url.com redirects everything and I don't want /files to be redirected Craig -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

5 5

kernel: bnx2i: iSCSI not supported, dev=ethX
by David 17 Aug '10

17 Aug '10

Running CentOS 5.5 x86_64 on Dell R710 boxes. I have the server(s) configured for bonding/vlan and will be using iscsi to a SAN. I am in the pre-deployment stage so I am just setting up the basic cookie cutter configurations so I haven't initiated the iscsi connection to a SAN yet. While going through the error messages I noticed this error: kernel: bnx2i: iSCSI not supported, dev=ethX. First time I have seen this error while configuring previous Dell servers, though I noticed most of my older boxes are using the tg3 module for the onboard NIC's. Has anyone run into this error message and if so does it means what it says....iSCSI not supported for the target device? Thanks, David

3 2

When does %POST kick in in Kickstart?
by Jacob Brown 17 Aug '10

17 Aug '10

Okay, this is really simple but because Google has deteriorated in quality over time, it's getting really hard to find straight forward answers. Very simple; when does the %POST section of the Kickstart file kick in during the install process? Before or after the first reboot? Hopefully this gets picked up easy by the spiders...

3 2

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