- Intro
- unrestricted commands for TCP/IP
- finger
- display information about local and remote users
- ftp
- file transfer program
- otalk
- talk to another user
- rcp
- remote file copy
- rlogin
- remote login
- rpcgen
- RPC protocol compiler
- rpcinfo
- report RPC information
- rsh
- remote shell
- ruptime
- show host status of local machines
- rusers
- who's logged in on local machines
- rwho
- who's logged in on local machines
- talk
- talk to another user
- telnet
- user interface to a remote system using the TELNET protocol
- tftp
- trivial file transfer program
- whois
- Internet user name directory service