Answer:
| Service | Port | Description |
| FTP | 21 | File transfer protocol, used to transfer data via the FTP protocol |
| SSH | 22 | Secure shell, used for secure logins, file transfers, and port forwarding |
| Telnet | 23 | Telnet, used to send unencrypted text messages |
| SMTP | 25 | Simple mail transfer protocol, used to route e-mails between mail servers |
| Domain | 53 | Domain name server (DNS) |
| BOOTP | 68 | Bootstrap protocol client, used by dynamic host configuration protocol (DHCP) |
| HTTP | 80 | World Wide Web hypertext transfer protocol (HTTP) |
| HTTPS | 443 | HTTP over secure sockets layer (SSL) |
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