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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 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. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE8rcbqc8/WFSz+GKMRAuHVAJ9NvhKN+jOrFQK3/eXopkfXH36W2wCdFUw/ iIAXl3YhjJdlKNmf0ddrpo0= =S3HY -----END PGP SIGNATURE-----