| FTP | 21 |
| Telnet | 23 |
| SMTP | 25 |
| DNS | 53 |
| TFTP | 69 |
| Finger | 79 |
| HTTP | 80 |
| POP3 | 110 |
| NNTP | 119 |
| SNMP | 161 |
| MySQL | 3306 |
| Microsoft SQL Server | 1433 |
| Terminal Services | 3389 |
| AIM | 5190 |
| PCAnyWhere | 5631, 5632 |
| VNC | 5800, 5801, 5900, 5901 |
| X Windows | 6000 |
| IRC | 6667 |
| FTP | 21 |
| Telnet | 23 |
| SMTP | 25 |
| DNS | 53 |
| TFTP | 69 |
| Finger | 79 |
| HTTP | 80 |
| POP3 | 110 |
| NNTP | 119 |
| SNMP | 161 |
| MySQL | 3306 |
| Microsoft SQL Server | 1433 |
| Terminal Services | 3389 |
| AIM | 5190 |
| PCAnyWhere | 5631, 5632 |
| VNC | 5800, 5801, 5900, 5901 |
| X Windows | 6000 |
| IRC | 6667 |