Ubuntu
ntp package

  1. Bug #236719
  2. Comment #5

Comment 5 for bug 236719

Revision history for this message
Thomas (thomas-sprinkmeier) wrote :

try one of the NTP pool servers: http://www.pool.ntp.org/
Your ISP should have an NTP server too, that's probably the best one to sync on as it's closest.

also try ntptrace:

$ ntptrace 1.au.pool.ntp.org
1.au.pool.ntp.org: stratum 2, offset -0.000370, synch distance 0.028278

SSH uses TCP (but no proxy http://en.wikipedia.org/wiki/Proxy_server), so if that's getting through but NTP (which uses UDP) does not then it might be a configuration problem with your gateway.