Dienst

Port

RFC

TCP

UDP

DNS

53

Finger

79

FTP

20, 21

HTTP

80

IMAP

220

NetBIOS

137, 138, 139

137, 138, 139

netstat

15

News

119

NFS

2049

2049

POP3

110

SMTP

25

SNMP

151, 162

systat

11

Telnet

23

X-Server

6000

6000