File Transfer Protocol
Sends and receives files between systems
Secure Shell
Encrypted console access
Telecommunication Network
Insecure console access
Simple Mail Transfer Protocol
Transfer email between mail servers
Domain Name System
Convert domain names to IP addresses
Dynamic Host Configuration Protocol
Automate the IP address configuration process
Hypertext Transfer Protocol
Web server communication
Hypertext Transfer Protocol Secure
Web server communication with encryption
Post Office Protocol version 3
Receive email into an email client
Internet Message Access Protocol v4
A newer email client protocol
NetBIOS name service
Register, remove, and find Windows services by name
NetBIOS session service
Windows connection-oriented data transfer
Server Message Block
Windows file transfers and printer sharing
Lightweight Directory Access Protocol
Directory services
Remote Desktop Protocol
Graphical display of remote devices