Ports

FTP - File Transfer Protocol for Session Control

FTP - File Transfer Protocol for Data Transfer

FTP Over TLS/SSL

SSH - Secure Shell, SFTP - Secure File Transport Protocol, SCP - Secure Copy

TFTP - Trivial File Transport Protocol

FTPS - File Transport Protocol Secure (Uses SSL)

SMTP - Simple Mail Transport Protocol

SMTPS - Simple Mail Transfer Protocol Secure

POP3 - Post Office Protocol Version 3

POP3S - Post office Protocol version 3 Secure

IMAP4 - Internet message access protocol version 4

IMAPS - Internet Message Access Protocol secure

Telnet

TACTACS - Terminal Access Controller Access-Control System

TACTACS+

RADIUS

SSL VPN - Secure Sockts Layer Virtual Private Network

ISAKMP (VPN) - Internet Security Association and Key Management Protocol (Virtual Private Network) & IKE

L2TP - Layer 2 Tunneling Protocol

PPTP - Point-to-Point Tunneling Protocol

RDP - Remote Desktop Protocol

DNS - Domain Name System

DHCP - Dynamic Host Configuration Protocol

HTTP - Hyper Text Transfer Protocol

HTTPS - Hypertext Transfer Protocol Secure

Kerberos

NNTP - Network News Transfer Protocol

Network Time Protocol (NTP)

SNMP - Simple Network Management Protocol

SNMP Trap - Simple Network Management Protocol Trap

LDAP - Lightweight Directory Access Protocol

Syslog

Secure Directory Service Access with an SSL/TLS connection

Session initiation protocl (SIP)

SNMP Management Station receives SNMP Notifications from Agens on UDP Port

SNMP Agent receives requests on