21 FTP
23 Telnet
25 SMTP
53 DNS
59 DCC IP
79 Finger
80 HTTP
98 LinuxConf
110 POP3
113 Identd
119 News
135 Win NT
139 NetBios
1080 WinGate
6665,6667,6669,6680 etc. IRC Server
8080 Proxy HTTP
12345 NetBus
20034 NetBus 2