| Port | Service |
|---|
| 20 | FTP-DATA |
| 21 | FTP |
| 23 | Telnet, Internet BBS |
| 25 | SMTP, Send mail |
| 53 | DNS |
| 79 | Finger |
| 80 | HTTP, World Wide Web |
| 110 | POP3, Receive mail |
| 113 | AUTH, Authentication |
| 119 | NNTP, Net News |
| 139 | NETBIOS Session Service |
| 161 | SNMP |
| 162 | SNMP-TRAP |
| 443 | HTTPS |
| 500 | ISAKMP |
| 517 | TALK |
| 518 | NTALK |
| 1723 | PPTP, Microsoft VPN |
| 2049 | NFS, Sun Network File System |
|