Niall O Broin wrote:
> 193.120.10.3 is ntp0.esat.net, and I get that server as it's one of the
> hosts which will be returned for ie.pool.ntp.org (ie.pool.ntp.org could
> use some more machines, if you have a permanently connected time server
> where you could spare maybe 10kbit/s)
The esat ntp servers have done this for at least a year or two now, i've
never figured out why. Ntpdate still works, as does ntp itself, but
ntptrace does not. From a tcpdump of ntpdate:
15:10:18.915104 IP 194.46.228.180.48748 > 193.120.10.3.123: NTPv4,
Client, length 48
15:10:18.965562 IP 193.120.10.3.123 > 194.46.228.180.48748: NTPv4,
Server, length 48
And a tcpdump of ntptrace:
15:14:41.184620 IP 194.46.228.180.48748 > 193.120.10.3.123: NTPv2,
Reserved, length 12
15:14:46.184616 IP 194.46.228.180.48748 > 193.120.10.3.123: NTPv2,
Reserved, length 12
Maybe the server just drops NTPv2 packets?
Steve
P.s. my personal ntp tip is to add the 'iburst' param to the server
line, it means on startup ntpd sends 3 query packets in a short space of
time, and voila it's synced. Having to wait 15 mins just to find out if
ntp is working can be rather vexing.
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