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Port Numbers

Network Fundamentals / Ch. 6 - TCP/IP Transport, Applications, and Security

ApplicationProtocolPort Number
FTP data TCP 20
FTP control TCP 21
SSH TCP 22
Telnet TCP 23
SMTP TCP 25
DNS UDP, TCP 53
DHCP UDP 67, 68
TFTP UDP 69
HTTP (WWW) TCP 80
POP3 TCP 110
SNMP UDP 161
SSL TCP 443
RTP-based Voice (VoIP) and Video UDP 16,384–32,767
Created by: k3ntucky