Important Port Numbers

TCP - 1

FTP – 20 DATA

FTP – 21 CONTROL

SSH – 22

TELNET – 23

SMTP – 25

DNS – 53

TFTP – 69

HTTP – 80

HTTPS – 443

POP3 – 110

SNMP -161

FTP – 20 DATA

FTP – 21 CONTROL

SSH – 22

TELNET – 23

SMTP – 25

DNS – 53

TFTP – 69

HTTP – 80

HTTPS – 443

POP3 – 110

SNMP -161

BGP – 179 TCP Port