Chapter 7: Introduction to TCP/IP
Here is the correct matching of protocols and services to their ports:
Protocol (service) | Port(s) |
FTP | 20, 21 |
SSH | 22 |
Telnet | 23 |
SMTP | 25 |
DNS | 53 |
DHCP | 67, 68 |
HTTP | 80 |
POP3 | 110 |
NetBIOS/NetBT | 137–139 |
IMAP | 143 |
SNMP | 161, 162 |
LDAP | 389 |
SLP | 427 |
HTTPS | 443 |
SMB/CIFS | 445 |
AFP | 548 |
RDP | 3389 |