文档介绍：常见网络应用协议端口号应用协议端口号/协议说明 ftp-data 20/tcp FTP, data ftp21/tcp FTP. control 23/tcp smtp 25/tcp Simple Mail Transfer Protocol time 37/tcp timserver time 37/udp timserver domain 53/tcp Domain Name Server domain 53/udp Domain Name Server tftp 69/udp Trivial File Transfer gopher 70/tcp http 80/tcp Wide Web pop3 110/tcp Post Office Protocol-Version 3 nntp 119/work News Transfer bios-ns 137/BIOS Name bios-ns 137/BIOS Name bios-dgm 138/BIOS Datagram bios-ssn 139/BIOS Session Service imap 143/tcp Message Access Protocol snmp 161/udp SNMP snmptrap 162/udp SNMP trap irc194/tcp Relay Chat Protocol ipx213/udp IPX over IP ldap 389/tcp Lightweight Directory Access Protocol https 443/tcp https 443/udp uucp 540/tcp ldaps 636/tcp LDAP over TLS/SSL doom 666/tcp Doom IdSoftware doom 666/udp Doom IdSoftware phone 1167/udp Conference calling ms-sql-s 1433/tcp Microsoft-SQL-Server ms-sql-s 1433/udp Microsoft-SQL-Server ms-sql-m 1434/tcp Microsoft-SQL-Monitor ms-sql-m 1434/udp Microsoft-SQL-Monitor wins 1512/tcp Microsoft Windows Name Service wins 1512/udp Microsoft Windows Name Service l2tp