常见的端口号
来源: http://blog.csdn.net/yingevil/article/details/6766656
| 应用协议 | 端口号/协议 | 说明 |
|---|---|---|
| ftp-data | 20/tcp | FTP, data |
| ftp | 21/tcp | FTP. control |
| telnet | 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 |
| http | 80/tcp | www-http World Wide Web |
| https | 443/tcp | |
| https | 443/udp | |
| pop3 | 110/tcp | Post Office Protocol-Version 3 |
| nntp | 119/tcp | Network News Transfer Protocol |
| imap | 143/tcp | Internet Message Access Protocol |
| snmp | 161/udp | SNMP |
| snmptrap | 162/udp | SNMP trap |
| irc | 194/tcp | Internet Relay Chat Protocol |
| ipx | 213/udp | IPX over IP |
| ldap | 389/tcp | Lightweight Directory Access Protocol |
| uucp | 540/tcp | Unix-to-Unix Copy |
| ldaps | 636/tcp | LDAP over TLS/SSL |
| doom | 666/tcp | 游戏: Doom 毁灭战士 |
| doom | 666/udp | 游戏: Doom 毁灭战士 |
| 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 Internet Name Service |
| wins | 1512/udp | Microsoft Windows Internet Name Service |
| l2tp | 1701/udp | Layer Two Tunneling Protocol |
| l2tp | 1720/tcp | |
| pptp | 1723/tcp | #Point-to-point tunnelling protocol |
| QICQ | 4000/udp | |
| QICQ | 8000/udp | |
| 1080/UDP | Socks 代理 |
BT 默认使用的端口是 6881,6882,6883.....6889 的 TCP 连接 (每一个下载只使用一个端口，顺次分配)
