Comments on: NTPd on CentOS 4.2 http://blog.scottlowe.org/2005/12/19/ntpd-on-centos-42/ The weblog of an IT pro specializing in virtualization, storage, and servers Fri, 05 Dec 2008 07:43:03 +0000 http://wordpress.org/?v=2.6 By: slowe http://blog.scottlowe.org/2005/12/19/ntpd-on-centos-42/#comment-2748 slowe Mon, 16 Oct 2006 13:14:46 +0000 http://blog.scottlowe.org/?p=142#comment-2748 Clucien--thanks for the info! I'll give that a try and see how it works. Scott Clucien–thanks for the info! I’ll give that a try and see how it works.

Scott

]]> By: Clucien http://blog.scottlowe.org/2005/12/19/ntpd-on-centos-42/#comment-2747 Clucien Mon, 16 Oct 2006 11:21:08 +0000 http://blog.scottlowe.org/?p=142#comment-2747 This seemed to work for me on a windows vmware server. Got the idea from http://forum.openvz.org/index.php?t=msg&goto=7153& You are adding 'clock=pmtmr' and booting from the 'EL' kernel. You then add the 'burst iburst' to your ntp.conf. 1) grub.conf default=1 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title CentOS_ServerCD (2.6.9-34.ELsmp) root (hd0,0) kernel /vmlinuz-2.6.9-34.ELsmp ro root=/dev/VolGroup00/LogVol00 clock=pmtmr initrd /initrd-2.6.9-34.ELsmp.img title CentOS_ServerCD-up (2.6.9-34.EL) root (hd0,0) kernel /vmlinuz-2.6.9-34.EL ro root=/dev/VolGroup00/LogVol00 clock=pmtmr initrd /initrd-2.6.9-34.EL.img 2) ntp.conf server 3.us.pool.ntp.org burst iburst server 2.us.pool.ntp.org burst iburst server 1.us.pool.ntp.org burst iburst ----------- I hope this helps someone. This seemed to work for me on a windows vmware server.

Got the idea from http://forum.openvz.org/index.php?t=msg&goto=7153&

You are adding ‘clock=pmtmr’ and booting from the ‘EL’ kernel.

You then add the ‘burst iburst’ to your ntp.conf.

1) grub.conf

default=1
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title CentOS_ServerCD (2.6.9-34.ELsmp)
root (hd0,0)
kernel /vmlinuz-2.6.9-34.ELsmp ro

root=/dev/VolGroup00/LogVol00 clock=pmtmr
initrd /initrd-2.6.9-34.ELsmp.img
title CentOS_ServerCD-up (2.6.9-34.EL)
root (hd0,0)
kernel /vmlinuz-2.6.9-34.EL ro

root=/dev/VolGroup00/LogVol00 clock=pmtmr
initrd /initrd-2.6.9-34.EL.img

2) ntp.conf

server 3.us.pool.ntp.org burst iburst
server 2.us.pool.ntp.org burst iburst
server 1.us.pool.ntp.org burst iburst
———–

I hope this helps someone.

]]> By: slowe http://blog.scottlowe.org/2005/12/19/ntpd-on-centos-42/#comment-156 slowe Sat, 14 Jan 2006 05:41:04 +0000 http://blog.scottlowe.org/?p=142#comment-156 Joseph, Thanks for the reply. I actually was able to resolve the problem (mostly) through a combination of factors. See http://blog.scottlowe.org/2005/12/23/centos-ntpd-problem-mostly-resolved/ for all the details. The server now stays within a minute or two of the reference clock but logs a great deal of ntpd-related messages in /var/log/messages. Joseph,

Thanks for the reply. I actually was able to resolve the problem (mostly) through a combination of factors. See http://blog.scottlowe.org/2005/12/23/centos-ntpd-problem-mostly-resolved/ for all the details. The server now stays within a minute or two of the reference clock but logs a great deal of ntpd-related messages in /var/log/messages.

]]> By: Joseph Dobransky http://blog.scottlowe.org/2005/12/19/ntpd-on-centos-42/#comment-155 Joseph Dobransky Fri, 13 Jan 2006 09:32:08 +0000 http://blog.scottlowe.org/?p=142#comment-155 I posted an article and provide a script for that purpose. http://forums.ev1servers.net/showthread.php?t=60087 Follow the directions. Although, I mention RHEL I have all my Centos4.2 servers running it quite well. I posted an article and provide a script for that purpose.

http://forums.ev1servers.net/showthread.php?t=60087

Follow the directions. Although, I mention RHEL I have all my Centos4.2 servers running it quite well.

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