| A | B |
|---|
| FTP - File Transfer Protocol | 20 & 21 |
| Telnet | 23 |
| SSH (SCP) - Secure Shell | 22 |
| SMTP - Simple Mail Transfer Protocol | 25 |
| DHCP - Dynamic Host Configuration Protocol | 67 & 68 |
| HTTP - Hypertext Transfer Protocol | 80 |
| POP3 - Post Office Protocol, | 110 |
| IMAP - Internet Message Access Protocol | 143 |
| LDAPS - Lightweight Directory Access Protocol over TLS/SSL | 636 |
| LDAP - Lightweight Directory Access Protocol | 389 |
| RDP - Remote Desktop Protocol | 3389 |
| DNS - Domain Name Service/System | 53 |
| HTTPS - Hypertext Transfer Protocol Secure | 443 |
| SMTPS - SMTP over TLS/SSL | 465 |
| SNMP - Simple Network Management Protocol | 161 |
| SMTP - Simple Mail Transfer Protocol | 25 |
| TFTP - Trivial File Transfer Protocol | 69 |
| IMAP4 over SSL | 993 |
| POP3 over SSL | 995 |
