Port TCP UDP protocol 20 TCP FTP - data transfer 21 TCP FTP - control (command) 22 TCP SSH 22 TCP SSL 23 TCP Telnet 25 TCP SMTP 53 TCP UDP DNS 69 UDP TFTP 80 TCP HTTP 110 TCP POP3 443 TCP HTTPS (Security)
Port
TCP
UDP
protocol
20
FTP - data transfer
21
FTP - control (command)
22
SSH
SSL
23
Telnet
25
SMTP
53
DNS
69
TFTP
80
HTTP
110
POP3
443
HTTPS (Security)
