Hello all, I apologize if this ends up being stupid, but I can't figure out what's going on. I have a new RHEL 4 system with ntp-4.2.0.a.20040617-4 installed from Red Hat. I am just trying to get it to sync its clock with other NTP servers.
It has the same ntp.conf, and is on the same subnet, as another system running the same version of RedHat and ntp. The iptables are the same (I even tried adding explicit ACCEPT rules for ntp, but that didn't seem to matter). The only thing that is different the kernel is 2.6.9-5 instead of 2.6.9-22. Here's my ntp.conf - really simple: ============================ server ntp0.cornell.edu driftfile /var/lib/ntp/drift ============================ Here's what I get in the log when I run 'ntpd -u ntp:ntp -q' on the failing host: Apr 7 13:53:17 pm7 ntpd[1020]: ntpd [EMAIL PROTECTED] Mon Oct 11 09:10:20 EDT 2004 (1) Apr 7 13:53:17 pm7 ntpd[1020]: precision = 2.000 usec Apr 7 13:53:17 pm7 ntpd[1020]: Listening on interface wildcard, 0.0.0.0#123 Apr 7 13:53:17 pm7 ntpd[1020]: Listening on interface wildcard, ::#123 Apr 7 13:53:17 pm7 ntpd[1020]: Listening on interface lo, 127.0.0.1#123 Apr 7 13:53:17 pm7 ntpd[1020]: Listening on interface eth0, 128.151.57.67#123 Apr 7 13:53:17 pm7 ntpd[1020]: kernel time sync status 0040 Apr 7 13:53:17 pm7 ntpd[1020]: frequency initialized 0.000 PPM from /var/lib/ntp/drift Apr 7 13:53:34 pm7 ntpd[1020]: no reply; clock not set It says "no reply", but when I run ntpd with the -d flag, it does in fact get a response back. I can see the packets with tcpdump even. The successful host looks like this: Apr 7 14:20:35 pm5 ntpd[19110]: ntpd [EMAIL PROTECTED] Mon Oct 11 09:10:20 EDT 2004 (1) Apr 7 14:20:35 pm5 ntpd[19110]: precision = 1.000 usec Apr 7 14:20:35 pm5 ntpd[19110]: Listening on interface wildcard, 0.0.0.0#123 Apr 7 14:20:35 pm5 ntpd[19110]: Listening on interface wildcard, ::#123 Apr 7 14:20:35 pm5 ntpd[19110]: Listening on interface lo, 127.0.0.1#123 Apr 7 14:20:35 pm5 ntpd[19110]: Listening on interface eth0, 128.151.57.65#123 Apr 7 14:20:35 pm5 ntpd[19110]: kernel time sync status 0040 Apr 7 14:20:35 pm5 ntpd[19110]: frequency initialized -4.304 PPM from /var/lib/ntp/drift Apr 7 14:20:44 pm5 ntpd[19110]: synchronized to 132.236.56.250, stratum 2 Apr 7 14:20:44 pm5 ntpd[19110]: time slew -0.000054 s Any ideas? Thanks, Christina ------------------------------------------------------------------------- Christina Plummer christina dot plummer at rochester dot edu UNIX Systems Administrator Information Technology Services University of Rochester (585)275-2239 _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
