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
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@xxxxxxxxxxxx>
happymaster23 wrote:# yum install ntp
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?
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)
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