[PLUG] ntpdate

dan at fiddlers-green.info dan at fiddlers-green.info
Fri Dec 16 08:25:25 UTC 2005


All,

I've been struggling with an ntpdate and ntpd problem for about two days. I'm
attempting to use ntpd on my gateway as the "master" time server for my
network. However, I can't even get ntpdate to work from the command line for
the various ntp servers I have in my ntp.conf file. Every server seems to work
fine in debug mode (-d option) but fails with the error " no server suitable
for synchronization found". Everything I've found on the web indicates this
message shows up when there is a network connection problem. I've verified with
tcpdump that messages are getting back and forth, and the "-d" option shows the
following:


[root at osiligarth ~]# ntpdate -d hydrogen.cert.ucr.edu
16 Dec 00:35:54 ntpdate[19791]: ntpdate 4.2.0a at 1.1190-r Mon Feb 21 17:54:53 GMT
2005 (1)
Looking for host hydrogen.cert.ucr.edu and service ntp
host found : hydrogen.cert.ucr.edu
transmit(138.23.180.126)
receive(138.23.180.126)
transmit(138.23.180.126)
receive(138.23.180.126)
transmit(138.23.180.126)
receive(138.23.180.126)
transmit(138.23.180.126)
receive(138.23.180.126)
transmit(138.23.180.126)
server 138.23.180.126, port 123
stratum 2, precision -20, leap 00, trust 000
refid [138.23.180.126], delay 0.06934, dispersion 0.00040
transmitted 4, in filter 4
reference time:    c74cf912.f1e15ca6  Fri, Dec 16 2005  0:28:02.944
originate timestamp: c74cfaf1.2dc7de50  Fri, Dec 16 2005  0:36:01.178
transmit timestamp:  c74cfaeb.5ec2699c  Fri, Dec 16 2005  0:35:55.370
filter delay:  0.07294  0.07092  0.07130  0.06934 
         0.00000  0.00000  0.00000  0.00000 
filter offset: 5.787980 5.787201 5.787066 5.786798
         0.000000 0.000000 0.000000 0.000000
delay 0.06934, dispersion 0.00040
offset 5.786798

16 Dec 00:35:55 ntpdate[19791]: step time server 138.23.180.126 offset 5.786798
sec

[root at osiligarth ~]# ntpdate -v hydrogen.cert.ucr.edu
16 Dec 00:39:08 ntpdate[23230]: ntpdate 4.2.0a at 1.1190-r Mon Feb 21 17:54:53 GMT
2005 (1)
16 Dec 00:39:12 ntpdate[23230]: no server suitable for synchronization found

I went ahead with starting ntpd yesterday and just letting it run to see if it
would eventually synchronize, but it failed to sync with any servers even after
24 hours. I'm hoping if I can get ntpdate to work, I can get ntpd to work
afterwards.Anyhelp would be appreciated.

thanks,
Dan H.

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