[ntp:questions] Re: Question on abusive clients.

Hal Murray hmurray at suespammers.org
Fri Dec 23 18:59:49 UTC 2005


>ntpdate uses a random port by default. However standard ntp servers only
>send and receive NTP packets on port 123.

Is that right?  I thought ntpdate used 123 by default so it gets an error
message if ntpd is running rather than trashing the clock out from under
ntpd.

The html doc says -u and -d use an unprivileged port, but I don't
see any place where it says which port it uses if you don't specify
-u or -d.

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