On Saturday 15 November 2008 14:19:12 Dirk H. Schulz wrote:
Anne,
please check your /etc/ntp.conf for the "server" statement; CentOS original is
server 0.rhel.pool.ntp.org server 1.rhel.pool.ntp.org server 2.rhel.pool.ntp.org
My config file says
server 0.centos.pool.ntp.org server 1.centos.pool.ntp.org server 2.centos.pool.ntp.org
These 2 server ips you listed do not belong to this pool (you can check via dns), and resolved backwardly their names do not sound like they are ntp servers.
One is the University of Potsdam, which seems a likely pool member. The other is the National Information Infrastucture Development Office in Budapest - again, I would not think that too unlikely.
You should find out why your ntp tries to send to them (and what).
The zones are listed at http://www.pool.ntp.org/zone/europe but I have no idea how to find out which servers are in each pool.
In fact it is not the same addresses each day. The day before I mentioned it, the report gave the IP of Research Machines, in Oxfordshire. Again, a likely member of a pool.
The "total synchronizations ..." line at least seems to say that your ntp sync works - you could check that with ntpdate against a server from the above pool to be sure.
I'll do that, thanks.
Anne