NTP time sync not working in a DOMU Centos 5.5 server

I have a Xen Centos 5.5 server with ntpd working in virtual server.

NTP time sync seems not working.

I have disabled any firewall.

my grep -i ntpd /var/log/messages output:

Apr  1 16:15:47 posadadelpuerto ntpd[17635]: ntpd [email protected] Sat Dec 19 00:56:13 UTC 2009 (1)
Apr  1 16:15:47 posadadelpuerto ntpd[17636]: precision = 1.000 usec
Apr  1 16:15:47 posadadelpuerto ntpd[17636]: Listening on interface wildcard, 0.0.0.0#123 Disabled
Apr  1 16:15:47 posadadelpuerto ntpd[17636]: Listening on interface wildcard, ::#123 Disabled
Apr  1 16:15:47 posadadelpuerto ntpd[17636]: Listening on interface eth0, fe80::216:36ff:fe5e:53f3#123 Enabled
Apr  1 16:15:47 posadadelpuerto ntpd[17636]: Listening on interface lo, ::1#123 Enabled
Apr  1 16:15:47 posadadelpuerto ntpd[17636]: Listening on interface lo, 127.0.0.1#123 Enabled
Apr  1 16:15:47 posadadelpuerto ntpd[17636]: Listening on interface eth0, 192.168.0.100#123 Enabled
Apr  1 16:15:47 posadadelpuerto ntpd[17636]: kernel time sync status 0040
Apr  1 16:16:15 posadadelpuerto ntpd[17636]: frequency initialized 0.000 PPM from /var/lib/ntp/drift

Thanks for any help

roberto

Solution 1:

By default the time of (pv) DomUs is linked against the time of the Dom0. So get your time right on the Dom0 and don't bother about ntp on the (para-virtualized) DomUs.