CentOS - Apr 2010 - How long will CENTOS 4.X automatic resync to to time server???

We have several CENTOS 4 and 5 servers.  ALL CENTOS servers have NTP setup to
sync time server.  Several days ago due to power outage all servers are reboot. 
Due to DNS server did NOT up quickly, CENTOS servers start up and can NOT find
time server.

For CENTOS 5.X servers, it did quickly resync to time server after 30 minutes.

For CENTOS 4.X servers, it have been 3 days still NOT sync to time server.  I
know I can run "service ntpd restart" to force server sync to time
server, but I like to know how long it take for CENTOS 4.X automatic resync to
time server.

Thanks.

On 4/12/2010 2:34 PM, mcclnx mcc wrote:
> We have several CENTOS 4 and 5 servers.  ALL CENTOS servers have NTP setup
to sync time server.  Several days ago due to power outage all servers are
reboot.  Due to DNS server did NOT up quickly, CENTOS servers start up and can
NOT find time server.
>
> For CENTOS 5.X servers, it did quickly resync to time server after 30
minutes.
>
> For CENTOS 4.X servers, it have been 3 days still NOT sync to time server. 
I know I can run "service ntpd restart" to force server sync to time
server, but I like to know how long it take for CENTOS 4.X automatic resync to
time server.
>
> Thanks. 
>
>
>       
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> CentOS mailing list
> CentOS at centos.org
> http://lists.centos.org/mailman/listinfo/centos
>   
If you need to force it by hand to resync and don't mind an abrupt time
change run the following command:

ntpdate -u your.ntp.server

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