...and sorry, I have forgot to include printout from ntptrace, so: localhost.localdomain: stratum 2, offset 0.000029, synch distance 0.949418 tak.cesnet.cz: stratum 1, offset 0.000000, synch distance 0.002272, refid 'GPS' 2008/9/8 happymaster23 <happymaster23 at gmail.com> > Thank you very much, > > all is working perfectly. I am using ntp.nic.cz (CZ NIC is cz TLD > registry), tak.cesnet.cz (CESNET is czech academic network) and > 1.cz.pool.ntp.org. I think, that this servers are good? Am I right? Or is > better to use more NTP servers? > > Thanks > > 2008/9/6 John R Pierce <pierce at hogranch.com> > > happymaster23 wrote: >> >>> Hello everyone, >>> >>> I have problem with time delaying on my CentOS powered server. I have >>> tried to set time in BIOS and in OS (with saving time to BIOS), but time >>> still delaying, so after month is about five minutes delayed. In past I was >>> using this box with Windows and there wasn´t this time problem, but I cant >>> warrant, that there are no hardware issues. So I was decided, that easiest >>> way to fix this problem will be setting up the NTP. I have found many >>> howtos, but I don´t believe them. So my question is: How to clearly set NTP >>> in CentOS 5? >>> >> >> >> # yum install ntp >> >> then, edit /etc/ntp.conf, and at a minimum specify some ntp servers and >> restrict access to localhost... >> >> restrict 127.0.0.1 >> restrict -6 ::1 >> >> # Use public servers from the pool.ntp.org project. >> # Please consider joining the pool (http://www.pool.ntp.org/join.html). >> server ntp1.sf-bay.org >> server ntp2.sf-bay.org >> server reloj.kjsl.com >> server ntp1.mainecoon.com >> server ntp2.mainecoon.com >> server time.berkeley.netdot.net >> >> >> >> (note, those are the LOCAL TO ME ntp servers that *I* am using, you should >> undoubtedly use others as appropriate, or use the pool servers... see >> http://ntp.isc.org/bin/view/Servers/WebHome for guidelines)... >> >> finally... >> >> # chkconfig ntpd on >> # service ntpd start >> >> and wait about 20 mins for it to sync up, and verify functionality with >> ntptrace... >> >> # ntptrace >> localhost.localdomain: stratum 3, offset 0.004351, synch distance >> 0.088396 >> zorro.sf-bay.org: stratum 2, offset 0.000543, synch distance 0.044773 >> clock.via.net: stratum 1, offset 0.000027, synch distance 0.000446, >> refid 'GPS' >> >> if your systems clock is particularlly funky, it may be a good idea to >> edit, /etc/sysconfig/ntpd and set SYNC_HWCLOCK=yes rather than no. >> (this tells it to set your HW CMOS clock when it sets the system clock >> during the initial synchronization) >> >> >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> http://lists.centos.org/mailman/listinfo/centos >> > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20080908/85d89604/attachment-0005.html>