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Re: Fedora 7: a problem with ntp ?



On Fri, 2007-09-07 at 23:30 +0400, Andrew Junev wrote:
> Friday, September 7, 2007, 10:23:49 PM, you wrote:
> 
> 
> > Did you do a "service ntpd restart"?
> 
> Sure!
> 
> 
> > Yes, ntpdate requires you to pass it a clock server.  I made a minor
> > boo-boo in saying the /etc/rc.d/init.d/ntpd script uses the clock
> > sources from ntpservers...it uses step-tickers.  If you see the startup
> > message "Synchronizing with time server:", then it's trying the ntpdate
> > command.  If it comes up with "[OK]", then it succeeded and the ntpd
> > daemon SHOULD be able to keep you in sync (unless your clock is REALLY
> > fast...in which case you have other problems).
> 
> > The actual ntpd daemon startup is indicated by the startup message
> > "Starting ntpd".
> 
> 
> I get everywhere 'OK', but it still doesn't work...
> Here's the log, I was just typing the commands one by one:
> 
> [root frontend ~]# date
> Fri Sep  7 23:21:29 MSD 2007
> [root frontend ~]# service ntpd restart
> Shutting down ntpd:                                        [  OK  ]
> ntpd: Synchronizing with time server:                      [  OK  ]
> Starting ntpd:                                             [  OK  ]
> [root frontend ~]# ntpq -p
>      remote           refid      st t when poll reach   delay   offset  jitter
> ==============================================================================
>  andromeda.cs.pu .CDMA.           1 u    6   64    1  187.712  -46.448   0.002
>  banana.irc.gr   192.36.134.25    2 u    5   64    1  160.135  -67.667   0.002
>  b.pool.ntp.uq.e 130.102.152.7    2 u    4   64    1  550.855    4.548   0.002
> [root frontend ~]# ntpstat
> unsynchronised
>   time server re-starting
>    polling server every 64 s
> [root frontend ~]# date
> Fri Sep  7 23:21:59 MSD 2007
> [root frontend ~]#
> 
> Here's the corresponding part of /var/log/messages:
> 
> Sep  7 23:21:35 frontend ntpd[4088]: ntpd exiting on signal 15
> Sep  7 23:21:39 frontend ntpdate[4115]: step time server 66.187.224.4 offset -0.344342 sec
> Sep  7 23:21:39 frontend ntpd[4117]: ntpd 4 2 4p2 1 1495-o Tue Aug 21 14:07:56 UTC 2007 (1)
> Sep  7 23:21:39 frontend ntpd[4118]: precision = 2.000 usec
> Sep  7 23:21:39 frontend ntpd[4118]: Listening on interface #0 wildcard, 0.0.0.0#123 Disabled
> Sep  7 23:21:39 frontend ntpd[4118]: Listening on interface #1 wildcard, ::#123 Disabled
> Sep  7 23:21:39 frontend ntpd[4118]: Listening on interface #2 lo, ::1#123 Enabled
> Sep  7 23:21:39 frontend ntpd[4118]: Listening on interface #3 eth0, fe80::230:5ff:fe22:857#123 Enabled
> Sep  7 23:21:39 frontend ntpd[4118]: Listening on interface #4 lo, 127.0.0.1#123 Enabled
> Sep  7 23:21:39 frontend ntpd[4118]: Listening on interface #5 eth0, 172.23.0.133#123 Enabled
> Sep  7 23:21:39 frontend ntpd[4118]: kernel time sync status 0040
> Sep  7 23:21:39 frontend ntpd[4118]: frequency initialized 0.000 PPM from /var/lib/ntp/drift
> 
> 
> 
> 
> > Just for your info, here are my files:
> 
> > [root golem3 ~]# cat /etc/ntp/ntpservers
> > clock.redhat.com
> > clock2.redhat.com
> > [root golem3 ~]# cat /etc/ntp/step-tickers
> > clock.redhat.com
> > clock2.redhat.com
> 
> > Works fine for me.
> 
> I have the same now. And it doesn't work. And I see no reason...
> 
> 
> > You do have port 123 open on your firewall, right?
> 
> I have my firewall disabled at all. So all ports are open.
> And other PCs on my home LAN are syncing just fine, so it's not a
> provider's fault.

Ok, final push.  Edit /etc/sysconfig/ntpd and add "-x" to the OPTIONS
line:

# Drop root to id 'ntp:ntp' by default.
OPTIONS="-x -u ntp:ntp -p /var/run/ntpd.pid"
         ^^
         Add there

Finally, do "service ntpd restart" and it should fire up.

----------------------------------------------------------------------
- Rick Stevens, Principal Engineer             rstevens internap com -
- CDN Systems, Internap, Inc.                http://www.internap.com -
-                                                                    -
-     There are only 10 kinds of people in the world -- those who    -
-                 understand binary and those who don't              -
----------------------------------------------------------------------


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