Port numbers Flashcards
20
File Transfer Protocol (FTP)
Transfer port
21
File Transfer Protocol (FTP)
Control port
22
Secure Shell (SSH)
or
SSH File Transfer Protocol
49
TACACS+
Cisco proprietary protocol used for AAA services
53
Domain Name System (DNS)
67
Dynamic Host Configuration Protocol (DHCP)
68
Dynamic Host Configuration Protocol (DHCP)
80
Hypertext Transfer Protocol (HTTP)
88
Kerberos
110
Post Office Protocol (POP)
Email protocol
143
Internet Message Access Protocol (IMAP)
Email protocol
993
Internet Message Access Protocol (IMAP)
Email protocol
161
Simple Network Management Protocol (SNMP)
162
Simple Network Management Protocol (SNMP)
389
Lightweight Directory Access Protoc0l (LDAP)
443
Hypertext Transfer Protocol Secure (HTTPS)
636
Lightweight Directory Access Protocol Secure (LDAPS)
989
File Transfer Protocol Secure (FTPS)
990
File Transfer Protocol Secure (FTPS)
993
Internet Message Access Protocol Secure (IMAPS)
995
Post Office Protocol 3 Secure (POP3S)
Secure version of POP that uses TLS for encryption
1812
Remote Authentication Dial-In User Service (RADIUS)
1813
Remote Authentication Dial-In User Service (RADIUS)
3868
Diameter
Developed as an upgrade to RADIUS
5004
Secure Real Time Protocol (SRTP)
Audio and video streaming over UDP
1701
Layer 2 Tunneling Protocol (L2TP)
1723
Point to Point Tunneling Protocol (PPTP)
Deprecated protocol for VPNs
3389
Remote Desktop Protocol (RDP)