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远程连接
| Service |
Port |
Transport Protocol |
| Telnet |
23（明文传输，极不安全） |
TCP/UDP |
| SSH |
22 |
TCP/UDP/SCTP |
| Windows Remote Desktop |
3389 |
TCP |
文件传输
| Service |
Port |
Transport Protocol |
| TFTP |
69 |
UDP |
| FTP |
21 |
TCP/UDP/SCTP |
| SFTP |
115 |
TCP/UDP |
E-mali
| Service |
Port |
Port for SSL |
Transport Protocol |
| IMAP |
143 |
993 |
TCP/UDP |
| SMTP |
25 |
994/465 |
TCP/UDP |
| POP3 |
110 |
995 |
TCP |
Web
| Service |
Port |
Transport Protocol |
| HTTP |
80 |
TCP/UDP |
| HTTPS |
443 |
TCP/UDP/SCTP |
| http-alt |
8080 |
TCP/UDP |
数据库
| Service |
Port |
Transport Protocol |
| Microsoft SQL Server |
TCP 1433 |
TCP |
| Microsoft SQL Server |
TCP 3306 |
TCP |
VPN
| Service |
Port |
Transport Protocol |
| PPTP |
1723 |
TCP |
| L2TP |
1701 |
UDP |
| IPSec |
500/4500 |
UDP |
网络
| Service |
Port |
Transport Protocol |
| Whois |
43 |
TCP/UDP |
| Domain Name Server |
53 |
TCP/UDP |
| Network Time Protocol |
123 |
TCP/UDP |
| NETBIOS Name Service |
137/138/139 |
TCP/UDP |
| syslog |
514 |
UDP |