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Security+ Ports and Protocols
21 - -File Transfer Protocol Control (FTP) -
TCP
20 - -File Transfer Protocol Data (FTP) -
TCP
22 - -Secure Shell (SSH) - TCP or UDP
23 - -Telnet - TCP or UDP
25 - -Simple Mail Transfer Protocol
(SMTP) - TCP
49 - -Terminal Access Controller Access-
Control System Plus (TACACS+) - TCP
53 - -Domain Name System (DNS) - TCP
or UDP
69 - -Trivial File Transfer Protocol (TFTP) -
UDP
80 - -Hypertext Transfer Protocol (HTTP) -
TCP
88 - -Kerberos - TCP or UDP
110 - -Post Office Protocol 3 (POP3) - TCP
119 - -Network News Transfer Protocol
(NNTP) - TCP
137-139 - -NetBIOS - TCP or UDP
143 - -Internet Message Access Protocol
(IMAP) - TCP
161 - -Simple Network Management
Protocol (SNMP) - UDP
389 - -Lightweight Directory Access
Protocol (LDAP) - TCP or UDP
443 - -Hypertext Transfer Protocol Secure
(HTTPS) - TCP
514 - -Syslog - UDP
636 - -LDAP over TLS/SSL - TCP or UDP
989/990 - -FTP Secure - TCP or UDP
1701 - -Layer 2 Tunneling Protocol (L2TP)
- UDP
1723 - -Point-to-Point Tunneling Protocol
(PPTP) - TCP or UDP
1812/1813 - -Remote Authentication Dial-In
User Service (RADIUS) - UDP
3389 - -Remote Desktop Protocol (RDP) -
TCP or UDP
