Port to Protocol; Protocol to Port Flashcards
File Transfer Protocol
TCP
20, 21
Secure Shell (SSH)
TCP
22
Secure File Transfer Protocol
TCP
22, 989, 990
Secure Copy (SCP)
22
TCP
Telnet
TCP
23
Simple Mail Transfer Protocol (SMTP)
TCP
25
TACACS+
Terminal Access Controller Access Control System +
TCP
49
Domain Name Service (DNS)
TCP/UDP 53
Dynamic Host Configuration Protocol (DHCP)
UDP 67
UDP 68
Trivial File Transport Protocol (TFTP)
UDP 69
HTTP
Hypertext Transfer Protocol
TCP
80
Kerberos
TCP/UDP
88
POP3
TCP
110
NNTP
Network News Transfer Protocol
119
TCP
Network Time Protocol
NTP
UDP
123
NetBIOS
UDP 137
UDP 138
TCP 139
Internet Message Access Protocol Version 4
TCP
143
Simple Network Management Protocol
TCP/UDP 162
Lightweight Directory Access Protocol (LDAP)
TCP/UDP 389
File Transport Protocol Secure (FTPS)
TCP 443
Hypertext Transport Protocol Secure (HTTPS)
TCP 443
Secure Sockets Layer Virtual Private Network (SSL/VPN)
TCP 443
SMTP SSL/TLS
TCP
465
Internet Security Association and Key Management (ISAKMP VPN)
UDP
500
Syslog
UDP
514
LDAP TLS/SSL
TCP
636
IMAP SSL/TLS
TCP
993
POP SSL/TLS
TCP
995
MS SQL Server
TCP
1433
Layer 2 Tunneling Protocol
L2TP
UDP
1701
Point-to-Point Tunneling Protocol (PPTP)
TCP/UDP 1723
Remote Desktop Protocol (RDP)
TCP/UDP 3389
Terminal-Access Controller Access-Control System (TACACS+)
UDP 49
sLDAP
Secure Lightwieght Directory Access Protocol
TCP
636