[ntp:questions] Severe time drift for Undisciplined Local Clock

deon at nulan.co.za deon at nulan.co.za
Tue Apr 10 18:17:36 UTC 2007


Hi All

Thanks for the tremendous response I have received. I have bowed to  
the collective wisdom and have located a  Windows XP machine at each  
of our 200+ sites which we have configured to serve as a Time server.  
It is using the onboard RTC as the source.

I still have a problem though.

I can ping the server and Linux sees it but the time is not synched. I  
have run ntpq and the rv command indicates that the server is  
rejected. Why I cannot establish. The complete log files are attached.  
Anyone else which can offer a reason? BTW, have tried from 2 different  
servers and get the same results so either I am doing something wrong  
or XP has a problem. (The only problem I am aware of on XP is when it  
is used to synch to External Clock Sources).


I am calling ntpd like this:

ntpd -A -l /var/log/ntp/main.log

My /etc/ntp.conf file has one line:

server 192.168.222.100

Any help appreciated!

Deon


-------------- next part --------------
ntpq> pe
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
 192.168.222.100 .LOCL.           1 u   55   64  377    0.327  -418554 147.741
ntpq> as

ind assID status  conf reach auth condition  last_event cnt
===========================================================
  1 61380  9014   yes   yes  none    reject   reachable  1
ntpq> rv 61380
assID=61380 status=9014 reach, conf, 1 event, event_reach,
srcadr=192.168.222.100, srcport=123, dstadr=192.168.222.200,
dstport=123, leap=00, stratum=1, precision=-6, rootdelay=0.000,
rootdispersion=10414.490, refid=LOCL, reach=377, unreach=0, hmode=3,
pmode=4, hpoll=6, ppoll=10, flash=00 ok, keyid=0, ttl=0,
offset=-418554.281, delay=0.327, dispersion=18.791, jitter=168.096,
reftime=c9c5b3b5.e4000000  Tue, Apr 10 2007  8:56:53.890,
org=c9c63a54.e8000000  Tue, Apr 10 2007 18:31:16.906,
rec=c9c63bf7.bf0f27bb  Tue, Apr 10 2007 18:38:15.746,
xmt=c9c63bf7.bed8904f  Tue, Apr 10 2007 18:38:15.745,
filtdelay=     0.83    0.37    0.53    0.69    0.33    0.52    0.59    0.71,
filtoffset= -418839 -418800 -418744 -418641 -418554 -418560 -418474 -418482,
filtdisp=     15.63   16.59   17.58   18.57   19.56   20.55   21.52   22.50
ntpq>

-------------- next part --------------
10 Apr 14:17:23 ntpd[11429]: ntpd exiting on signal 2
10 Apr 14:19:36 ntpd[11538]: logging to file /var/log/ntp/main.log
10 Apr 14:19:36 ntpd[11538]: ntpd 4.2.0a at 1.1190-r Mon Oct 11 09:10:20 EDT 2004 (1)
10 Apr 14:19:36 ntpd[11538]: precision = 1.000 usec
10 Apr 14:19:36 ntpd[11538]: Listening on interface wildcard, 0.0.0.0#123
10 Apr 14:19:36 ntpd[11538]: Listening on interface lo, 127.0.0.1#123
10 Apr 14:19:36 ntpd[11538]: Listening on interface eth0, 192.168.21.24#123
10 Apr 14:19:36 ntpd[11538]: Listening on interface eth0:0, 172.169.5.1#123
10 Apr 14:19:36 ntpd[11538]: Listening on interface eth0:1, 192.168.222.200#123
10 Apr 14:19:36 ntpd[11538]: kernel time sync status 0040
[root at cherrypicker1 ~]#



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