[ntp:questions] NTP server can not synchronize with external NTP server

David Woolley david at ex.djwhome.demon.invalid
Fri Jan 8 07:48:25 UTC 2010


nast linux wrote:
> 
> I got the problem, my NTP server can not synchronize with external NTP
> server.
> 
Firewall.  In particular these days, OS' firewall.

As you are using a pool server, the other possibility, of trying to use 
a V3 server with a V4 client, without setting the client downversion, 
shouldn't apply.

ntpdate is failing as well, which suggests extensive firewalling, as 
that typically uses unprivileged ports.




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