Unix spooler spooler 515 talk — 517 ntalk — 518 ルート RIP 520 timeserver timed 525 newdate tempo 526 courier RPC 530 conference chat 531 netnews — 532 netwall wall 533 UUCP Daemon UUCP uucpd 540 Kerberos rlogin klogin 543 Kerberos rs...