Security+ Ports & Protocols

None of the Security+ text books seem to provide a comprehensive list of the ports and protocols you need to know for the exam, so I put one together for you. Yes, you need to memorize these. Knowing these forward and back will allow you to quickly answer several exam questions.

TCP/UDP        Port#                          Protocol                                                                                                                      Secure?

TCP 20 File Transfer Protocol (FTP) Data No
TCP 21 FTP Control Commands No
TCP 22 Secure Shell (SSH) Yes
    Secure Copy Protocol (SCP) Yes
    Secure File Transfer Protocol (SFTP) Yes
TCP 23 Telnet No
TCP 25 Simple Mail Transfer Protocol (SMTP) No
TCP 49 Terminal Access Controller Access Control System (TACACS+) Yes
TCP 53 Domain Name Server (DNS) No
UDP 53 DNS Queries and Responses No
UDP 69 Trivial File Transfer Protocol (TFTP) No
TCP 80 Hypertext Transfer Protocol (HTTP) No
TCP 88 Kerberos Yes
UDP 88 Kerberos Yes
TCP 110 Post Office Protocol (POP3) No
TCP 123 Network Time Protocol No
TCP 137 NetBIOS Windows No
UDP 137 NetBIOS Windows Name Registration & Resolution No
UDP 138 NetBIOS Datagram Distribution Service No
TCP 139 NetBIOS Connection-Oriented Sessions No
TCP 143 Internet Message Access Protocol (IMAP) No
UDP 161 Simple Network Management Protocol (SNMP) No
UDP 162 SNMP Trap No
TCP 389 Lightweight Directory Access Protocol (LDAP) No
UDP 389 Lightweight Directory Access Protocol (LDAP) No
TCP 443 Secure Sockets Layer (SSL) Yes
Transport Layer Security (TLS) Yes
HTTPS (Uses SSL or TLS) Yes
TCP 445 Later NetBIOS Yes
TCP 465 Secure SMTP (SSMTP or SMTPS) Yes
UDP 500 IPSec Internet Key Exchange (IKE) Yes
TCP 636 Secure Lightweight Directory Access Protocol (LDAP SSL/TLS) Yes
TCP 990 File Transfer Protocol Secure (FTPS) Yes
TCP 993 Internet Message Access Protocol Secure (IMAP SSL/TLS) Yes
TCP 995 Post Office Protocol (POP3 SSL/TLS) Yes
TCP 1433 Microsoft SQL Server Yes
UDP 1701 Layer 2 Tunneling Protocol (L2TP) Yes
TCP 1723 Point-to-Point Tunneling Protocol (PPTP) Yes
UDP 1812 RADIUS Authentication and Authorization Yes
UDP 1813 RADIUS Accounting (connection time) Yes
TCP 3389 Remote Desktop Protocol (RDP) Yes
UDP 3389 Remote Desktop Protocol (RDP) Yes
TCP 3868 Diameter Yes
UDP 10161 Simple Network Management Protocol (SNMP) Secure Yes
UDP 10162 Simple Network Management Protocol Trap (SNMP) Secure Yes