Port Numbers Flashcards
File transfer—control
Port #: 21
Process name: FTP
Protocol used: TCP
File transfer—data
Port #: 20
Process name: FTP-DATA
Protocol used: TCP
Secure Shell
Port #: 22
Process name: SSH
Protocol used: TCP
Telnet
Port #: 23
Process name: TELNET
Protocol used: TCP
Simple Mail Transfer Protocol
Port #: 25
Process name: SMTP
Protocol used: TCP
Domain Name System
Port #: 53
Process name: DNS
Protocol used: TCP & UDP
Dynamic Host Configuration Protocol version 4
Port #: 67 (client to server) & 68 (server to client)
Process name: DHCPv4
Protocol used: UDP
Trivial File Transfer Protocol
Port #: 69
Process name: TFTP
Protocol used: UDP
Hypertext Transfer Protocol
Port #: 80
Process name: HTTP
Protocol used: TCP & UDP
Post Office Protocol 3
Port #: 110
Process name: POP3
Protocol used: TCP
Network Time Protocol
Port #: 123
Process name: NTP
Protocol used: TCP
Internet Message Access Protocol
Port #: 143
Process name: IMAP
Protocol used: TCP
Secure implementation of HTTP
Port #: 443
Process name: HTTPS
Protocol used: TCP
Dynamic Host Configuration Protocol version 6
Port #: 546 (client to server) & 547 (server to client)
Process name: DCHPv6
Protocol used: UDP
Remote Desktop Protocol
Port #: 3389
Process name: RDP
Protocol used: TCP
