ntp cant keep up

thecooptoo · Veteran Joined: 27 Apr 2003 Posts: 1353 Location: UK

been running for 2 days after ntpdate server set it correctly now approx 30 mins slow

bash-2.05b# ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
ntp0.cis.strath 130.159.248.4 4 u 561 1024 377 33.177 1106637 4352.78
maverick.mcc.ac 193.63.106.104 2 u 501 1024 377 27.710 1107117 4462.66
hades.hosts.net 130.88.200.98 3 u 828 1024 377 24.108 1104905 3609.09
bash-2.05b# date
Tue Jun 29 17:31:44 BST 2004
bash-2.05b# /etc/init.d/ntpd stop
* Stopping ntpd... [ ok ]
bash-2.05b# ntpdate maverick.mcc.ac.uk
Looking for host maverick.mcc.ac.uk and service ntp
host found : maverick.mcc.ac.uk
29 Jun 17:51:01 ntpdate[23322]: step time server 130.88.202.49 offset 1131.759474 sec

router root # cat /etc/ntp.conf
restrict default noquery notrust
restrict 127.0.0.1

restrict 82.39.120.0 mask 255.255.248.0
fudge 127.127.1.0 stratum 3
server 127.127.1.0

server ntp.cis.strath.ac.uk
server ntp2a.mcc.ac.uk
server time-server.ndo.com

driftfile /var/lib/ntp/ntp.drift
logfile /var/log/ntp.log
-------------------------------------
28 Jun 22:15:39 ntpd[6246]: kernel time sync disabled 0041
28 Jun 22:25:16 ntpd[6246]: synchronized to 130.88.202.49, stratum=2
28 Jun 22:25:17 ntpd[6246]: synchronized to 130.159.196.118, stratum=4
28 Jun 22:49:57 ntpd[6246]: synchronized to 130.159.196.118, stratum=4
28 Jun 22:49:57 ntpd[6246]: kernel time sync disabled 0001
28 Jun 22:59:44 ntpd[6246]: synchronized to 130.88.202.49, stratum=2
28 Jun 23:06:07 ntpd[6246]: synchronized to 130.159.196.118, stratum=4
28 Jun 23:09:23 ntpd[6246]: synchronized to 130.88.202.49, stratum=2
28 Jun 23:26:32 ntpd[6246]: no servers reachable
29 Jun 17:31:54 ntpd[6246]: ntpd exiting on signal 15
bash-2.05b#

Rafje · Posted: Tue Jun 29, 2004 6:48 pm Post subject:

Which version of ntp are you running? I have had trouble getting 4.2.0 working. Switching to 4.1.2 did the trick for me.

This topic suggest this might have something to do with the 'restrict' lines in the configuration (but I haven't checked it out).

thecooptoo · Veteran Joined: 27 Apr 2003 Posts: 1353 Location: UK

net-misc/ntp
Latest version available: 4.2.0-r2
Latest version installed: 4.2.0-r2
Size of downloaded files: 2,455 kB
Homepage: http://www.ntp.org/
Description: Network Time Protocol suite/programs
License: as-is
tried commenting out the restrict lines - still loosing time

how do I roll back ntp to anm earlier version?
is this a bug?

Rafje · Posted: Fri Jul 09, 2004 8:26 pm Post subject:

kpack · Tux's lil' helper Joined: 29 Mar 2004 Posts: 137

Save your NTP configuration, then try this simple config:

server ntp.cis.strath.ac.uk
driftfile /var/lib/ntp/ntp.drift
logfile /var/log/ntp.log

I'm assuming you're in the UK since you're using UK servers.

nahpets · Posted: Fri Jul 09, 2004 9:49 pm Post subject:

the "restrict" options may be causing your problems. As soon as I removed them from my config, ntp worked fine.