[CentOS] CentOs 5.6 and Time Sync

Wed Apr 13 20:22:39 UTC 2011
Mailing List <mail_list at woh.rr.com>

On 4/13/2011 3:35 PM, Cal Webster wrote:
>
> I'm running the same kernel and ntp versions and I'm having no problems
> at all on ntp servers or clients.
>
> If my previous suggestions didn't help maybe you could share contents of
> the following files and output of some commands so the list can see what
> you've got.
>
> /etc/ntp.conf
> /etc/ntp/ntpservers
> /etc/ntp/step-tickers
> /var/lib/ntp/drift
>
>
> grep ntpd /var/log/messages*
> (please remove repeated messages for clarity)
>
> Most recent entries in /var/log/ntpd.log
>
> SELinux could also be playing a role.
>
> Are you running SELinux enabled, permissive, or disabled?
> What mode was it running before it stopped working?
> Are there any possibly related "avc" messages in /var/log/messages
> or /var/audit/audit.log?
>
> ./Cal
>
  /etc/ntp;

restrict default kod nomodify notrap nopeer noquery
restrict -6 default kod nomodify notrap nopeer noquery
restrict 127.0.0.1
restrict -6 ::1
server 0.centos.pool.ntp.org
server 1.centos.pool.ntp.org
server 2.centos.pool.ntp.org
server  127.127.1.0     # local clock
fudge   127.127.1.0 stratum 10
driftfile /var/lib/ntp/drift
keys /etc/ntp/keys

There is no /etc/ntp/ntpservers

/etc/ntp/step-tickers is an empty file.

/var/lib/ntp/drift;
   -65.219

I have no /var/log/ntpd.log

/varlog/messages;  This is the log using stock updated kernel.

Apr 12 03:32:35 Server ntpd[2797]: synchronized to LOCAL(0), stratum 10
Apr 12 03:33:36 Server ntpd[2797]: synchronized to 173.9.142.98, stratum 2
Apr 12 15:51:56 Server ntpd[2797]: time reset +43208.248852 s
Apr 12 15:51:56 Server ntpd[2797]: kernel time sync enabled 0001
Apr 12 15:56:03 Server ntpd[2797]: synchronized to LOCAL(0), stratum 10
Apr 12 15:56:26 Server ntpd[2797]: synchronized to 169.229.70.183, stratum 3
Apr 12 16:00:22 Server ntpd[2797]: synchronized to 173.9.142.98, stratum 2
Apr 12 16:16:59 Server ntpd[2797]: synchronized to 169.229.70.183, stratum 2
Apr 12 16:16:57 Server ntpd[2797]: time reset -1.830305 s
Apr 12 16:20:27 Server ntpd[2797]: synchronized to LOCAL(0), stratum 10
Apr 12 16:22:35 Server ntpd[2797]: synchronized to 169.229.70.183, stratum 2
Apr 12 16:28:01 Server ntpd[2797]: synchronized to 173.9.142.98, stratum 2
Apr 12 16:32:29 Server ntpd[2797]: synchronized to 169.229.70.183, stratum 3
Apr 12 16:36:36 Server ntpd[2797]: synchronized to 173.9.142.98, stratum 2
Apr 12 16:40:05 Server ntpd[2797]: synchronized to 169.229.70.183, stratum 3
Apr 12 16:41:57 Server ntpd[2797]: synchronized to LOCAL(0), stratum 10
Apr 12 16:42:09 Server ntpd[2797]: synchronized to 173.9.142.98, stratum 2
Apr 12 16:47:28 Server ntpd[2797]: synchronized to LOCAL(0), stratum 10
Apr 12 16:48:28 Server ntpd[2797]: synchronized to 169.229.70.183, stratum 3
Apr 12 16:51:44 Server ntpd[2797]: synchronized to 173.9.142.98, stratum 2
Apr 12 16:53:52 Server ntpd[2797]: synchronized to 173.193.227.67, stratum 4
Apr 12 16:58:06 Server ntpd[2797]: synchronized to 169.229.70.183, stratum 3
Apr 12 17:00:18 Server ntpd[2797]: synchronized to LOCAL(0), stratum 10
Apr 12 17:04:31 Server ntpd[2797]: synchronized to 169.229.70.183, stratum 3
Apr 12 17:06:44 Server ntpd[2797]: synchronized to LOCAL(0), stratum 10
Apr 12 19:54:46 Server ntpd[2797]: ntpd exiting on signal 15
Apr 13 03:01:24 Server ntpd[2409]: ntpd 4.2.2p1 at 1.1570-o Sat Dec 19 
00:56:13 UTC 2009 (1)
Apr 13 03:01:24 Server ntpd[2410]: precision = 1.000 usec
Apr 13 03:01:24 Server ntpd[2410]: Listening on interface wildcard, 
0.0.0.0#123 Disabled
Apr 13 03:01:24 Server ntpd[2410]: Listening on interface wildcard, 
::#123 Disabled
Apr 13 03:01:24 Server ntpd[2410]: Listening on interface lo, ::1#123 
Enabled
Apr 13 03:01:24 Server ntpd[2410]: Listening on interface eth0, 
fe80::218:8bff:fe80:67db#123 Enabled
Apr 13 03:01:24 Server ntpd[2410]: Listening on interface lo, 
127.0.0.1#123 Enabled
Apr 13 03:01:24 Server ntpd[2410]: Listening on interface eth0, 
192.168.2.1#123 Enabled
Apr 13 03:01:24 Server ntpd[2410]: kernel time sync status 0040
Apr 13 03:01:30 Server ntpd[2410]: frequency initialized 0.000 PPM from 
/var/lib/ntp/drift
Apr 13 07:04:44 Server ntpd[2410]: synchronized to LOCAL(0), stratum 10
Apr 13 07:04:44 Server ntpd[2410]: kernel time sync enabled 0001
Apr 13 07:11:09 Server ntpd[2410]: synchronized to 208.75.88.4, stratum 2
Apr 13 07:17:34 Server ntpd[2410]: synchronized to 64.6.144.6, stratum 2
Apr 13 07:42:59 Server ntpd[2410]: time reset -27.586767 s
Apr 13 07:46:35 Server ntpd[2410]: synchronized to LOCAL(0), stratum 10
Apr 13 07:47:38 Server ntpd[2410]: synchronized to 199.249.224.123, 
stratum 2
Apr 13 07:51:53 Server ntpd[2410]: synchronized to 64.6.144.6, stratum 2
Apr 13 09:27:19 Server ntpd[2410]: ntpd exiting on signal 15
Apr 13 09:27:19 Server ntpd[6743]: ntpd 4.2.2p1 at 1.1570-o Sat Dec 19 
00:56:13 UTC 2009 (1)

   Selinux is disabled, and just a note also. This is a stock install of 
of ntp. I never had to do any fudging with it cause it just worked up 
until the update.

  I also have no /var/log/audit/audit.log.

tia.

Brian

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