TCP/UDP Ports Flashcards
Port 20 & 21
FTP - File Transport Protocol
Port 22
SSH - Secure Shell
SFTP - Secure File Transport Protocol (uses SSH)
Port 23
Telnet
Port 25
SMTP - Simple Mail Transport Protocol
Port 53
DNS - Domain Name System
Port 67 & 68
DHCP - Dynamic Host Configuration Protocol
Port 69
TFTP - Trivial File Transport Protocol
Port 80
HTTP - Hypertext Transfer Protocol
Port 443
HTTPS - Hypertext Transfer Protocol Secure
SSL VPN - Secure Sockets Layer virtual private network
Port 110
POP3 - Post Office Protocol version 3
Port 123
NTP - Network Time Protocol
Port 143
IMAP4 - Internet message access protocol version 4
Port 161
SNMP - Simple Network Management Protocol
Port 389
LDAP - Lightweight Directory Access Protocol
Port 500
IPsec - Internet Protocol security (through the use of ISAKMP - Internet Security Association and Key Management Protocol)
