FTP - File Transfer Protocol.
Finger User Information Protocol.
TFTP - Trivial File Transfer Protocol.
Gopher - Internet Gopher Protocol.
HTTP - Hypertext Transfer Protocol.
S-HTTP - Secure Hypertext Transfer Protocol.
IMAP4 - Internet Message Access Protocol rev 4.
IPDC - IP Device Control.
ISAKMP - Internet Message Access Protocol version 4rev1.
NTP - Network Time Protocol.
POP3 - Post Office Protocol version 3.
Radius .
RLOGIN - Remote Login.
RTSP - Real-time Streaming Protocol.
SMTP - Simple Mail Transfer Protocol.
SNMP - Simple Network Management Protocol.
TACACS+ - Terminal Access Controller Access Control System.
TELNET .
X-Window .