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On Thu, 4 Apr 2002, John Abreau wrote:
> What port (or ports) does ntp use? Does it need tcp, udp, or both?
> We'd probably want to restrict it to the particular ip addresses
> we'd be syncing the clock with.
NTP uses port 123. IIRC, it uses UDP for the actual time sync stuff,
and TCP for control/diag tools such as ntptrace and ntpdc. I usually
allow both, but if you're paranoid you can probably get away with just
UDP. Be prepared for some of the utilities not to work, though.
- --
-Matt
AMAZING BUT TRUE ...
There is so much sand in Northern Africa that if it were spread out it
would completely cover the Sahara Desert.
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