【用戶】小威
【年級】幼稚園下
【評論內容】名稱協定埠號File Transfer Protocol (FTP)TCP21Secure Shell (SSH)TCP22TelnetTCP23Simple Mail Transfer Protocol (SMTP)TCP25Domain Name System (DNS)TCP/UDP53Dynamic Host Control Protocol (DHCP)UDP67、68Trivial File Transfer Protocol (TFTP)UDP69HyperText Transfer Protocol (HTTP)TCP80Post Office Protocol 3 (POP3)TCP110Network Time Protocol (NTP)UDP123Internet Message Access Protocol (IMAP)TCP143Simple Network Management Protocol (SNMP)UDP161、162Secure Socket Layer (SSL)TCP443