Cyber Security/Networking: Common Ports
6/5/19
Below is a listing of common ports:
Ports | Services | Protocol
21 FTP TCP
22 SSH TCP
23 Telnet TCP
25 SMTP TCP
53 DNS TCP/UDP
67/68 DHCP UDP
69 TFTP UDP
79 Finger TCP
80 HTTP TCP
88 Kerberos UDP
110 POP3 TCP
161 SNMP UDP
162 SNMP trap UDP
389 LDAP TCP
443 SSL/HTTPS TCP
445 SMB over IP TCP/UDP
1433 MS-SQL TCP
3389 RDC TCP