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Ports
TCP/UDP Ports
| Question | Answer |
|---|---|
| FTP | TCP 20-FTP data 21-FTP control |
| SSH | TCP22, UDP 22 |
| Telnet | TCP 23 |
| SMTP | TCP 25 |
| DNS | TCP53, UDP 53 |
| BOOTP & DHCP | UPD 67, 68 |
| Trivial FTP (TFPT) | UDP 69 |
| HTTP | TCP 80 |
| POP3 | TCP 110 |
| NNTP | TCP 119 |
| NTP | UDP 123 |
| IMAP | TCP 143, UDP 143 |
| SNMP | TCP 161, UDP 161 |
| Secure HTTP | TCP 443 |
| Remote Desktop | 3389 |
| TCP | Transmission Control Protocol |
| UDP | User Datagram Protocol |
| TCP Ports | 22, 23, 25, 53, 80, 110, 119, 143, 161, 443 |
| UDP Ports | 22, 53, 67, 68, 69, 123, 143, 161 |
| 22 | SSH |
| 23 | Telnet |
| 25 | SMTP |
| 53 | DNS |
| 67 | BOOTP & DHCP |
| 68 | BOOTP & DHCP |
| 69 | Trivial FTP (TFPT) |
| 80 | HTTP |
| 110 | POP3 |
| 119 | NNTP |
| 123 | NTP |
| 143 | IMAP |
| 161 | SNMP |
| 443 | Secure HTTP |
| 3389 | Remote Desktop |
| 22 xxP | TCP |
| 23 xxP | TCP |
| 25 xxP | TCP |
| 53 xxP | TCP |
| 67 xxP | UDP |
| 68 xxP | UDP |
| 69 xxP | UDP |
| 80 xxP | TCP |
| 110 xxP | TCP |
| 119 xxP | TCP |
| 123 xxP | UDP |
| 143 xxP | TCP & UDP |
| 161 xxP | TCP & UDP |
| 443 xxP | TCP |
| 3389 xxP | TCP |