Ports

20 ftp-data File Transfer [Default Data]
21 ftp File Transfer [Control]
22 ssh SSH Remote Login Protocol
23 telnet Telnet
25 smtp Simple Mail Transfer

53 domain Domain Name Server
80 www-http World Wide Web HTTP

110 pop3 Post Office Protocol – Version 3

137 netbios-ns NETBIOS Name Service
138 netbios-dgm NETBIOS Datagram Service
139 netbios-ssn NETBIOS Session Service

443 https