6.2 Well Known Ports


Terms in this set (...)

20 TCP
21 TCP
File Transfer Protocol (FTP)
22 TCP and UDP
Secure Shell (SSH)
SSH File Transfer Protocol (SFTP)
Secure Copy (SCP)
23 TCP
25 TCP
Simple Mail Transfer Protocol (SMTP)
49 TCP and UDP
Terminal Access Controller Access-Control System (TACACS)
*IP protocol number 50
Encapsulating Security Payload (ESP) (used with IPSec)
*IP protocol number 51
Authenticating Header (AH) (used with IPSec)
53 TCP and UDP
Domain Name Server (DNS)
67 UDP
68 UDP
Dynamic Host Configuration Protocol (DHCP)
69 UDP
Trivial File Transfer Protocol (TFTP)
80 TCP
HyperText Transfer Protocol (HTTP)
88 TCP
110 TCP
Post Office Protocol (POP3)
119 TCP
Network News Transport Protocol (NNTP)
123 UDP
Network Time Protocol (NTP)
135 TCP
137 and 138 TCP and UDP
139 TCP
Network Basic Input/Output System (NetBIOS)
143 TCP and UDP
Internet Message Access Protocol (IMAP4)
161 TCP and UDP
162 TCP and UDP
Simple Network Management Protocol (SNMP)
389 TCP and UDP
Lightweight Directory Access Protocol (LDAP)
443 TCP and UDP
HTTP with Secure Sockets Layer (SSL/TLS) (HTTPS)
445 TCP
Windows 2000 CIFS/SMB (file access)
500 UDP
Internet Key Exchange (IKE) (used with IPSec)
636 TCP and UDP
Lightweight Directory Access Protocol over TLS/SSL (LDAPS)
989 TCP and UDP
990 TCP and UDP
FTP Secure (FTPS or FTP over SSL/TLS)
1701 UDP
Layer 2 Tunneling Protocol (L2TP)
1723 TCP and UDP
Point-to-Point Tunneling Protocol (PPTP)
1812 TCP and UDP
1813 TCP and UDP
Remote Authentication Dial In User Service (RADIUS)
3389 TCP
Remote Desktop Protocol (RDP)