Simple Mail Transfer Protocol
TCP - 22
Secure Shell
a terminal session that is encrypted
UDP - 67,68
Remote Desktop Protocol
Dynamic Host Configuration Protocol
Automatic assignment of IP addresses
Post Office Protocol version 3
Secure FTP over SSH
file transfer that is encrypted
TCP - 80
TCP - 53 (zone transfers)
UDP - 52 (queries)
TCP - 3389
Simple Network Management Protocol
for managing devices across a network
Internet Message Access Protocol
UDP - 161, 162
Hypertext Transfer Protocol
Common Internet File System
provides shared access to files, printers, etc
TCP - 25
TCP - 23
TCP - 443
TCP - 110
TCP - 3020
TCP - 389
Server Message Block
file and printer sharing for Windows
File Transfer Protocol
file transfer - UNencrypted
Simple Mail Transfer Protocol
