Mac OS Server 服務的相關 Port

Remote Login (SSH) - 22
Screen Sharing Service (VNC) - 5900
AddressBook Service - 8800, 8843
iChat Service - 5222, 5223, 5060, 5269, 7777
Mail Service (SMTP, IMAP, POP) - 25, 110, 143, 587, 993, 995
Web Service - 80, 443
VPN Service (L2TP) - 500, 1701, 4500
VPN Service (PPTP) - 1723
File Sharing Service (AFP, SMB) - 548, 139

參考URL
http://support.apple.com/kb/TS2963