Port Reference
Common TCP/UDP ports directory and their associated services.
port tcp udp network service
| Port | Proto | Service | Description |
|---|---|---|---|
| 20 | TCP | FTP-DATA | File Transfer Protocol (Data) |
| 21 | TCP | FTP | File Transfer Protocol (Control) |
| 22 | TCP | SSH | Secure Shell Login |
| 23 | TCP | Telnet | Unencrypted Text Communications |
| 25 | TCP | SMTP | Simple Mail Transfer Protocol (Email) |
| 53 | UDP | DNS | Domain Name System |
| 67 | UDP | DHCP | Dynamic Host Configuration Protocol (Server) |
| 68 | UDP | DHCP | Dynamic Host Configuration Protocol (Client) |
| 80 | TCP | HTTP | Hypertext Transfer Protocol (Web) |
| 110 | TCP | POP3 | Post Office Protocol (Email) |
| 123 | UDP | NTP | Network Time Protocol |
| 143 | TCP | IMAP | Internet Message Access Protocol (Email) |
| 443 | TCP | HTTPS | Secure Hypertext Transfer Protocol (Web) |
| 445 | TCP | SMB | Server Message Block (Windows File Sharing) |
| 1433 | TCP | MSSQL | Microsoft SQL Server |
| 3306 | TCP | MySQL | MySQL Database |
| 3389 | TCP | RDP | Remote Desktop Protocol |
| 5432 | TCP | PostgreSQL | PostgreSQL Database |
| 6379 | TCP | Redis | Redis Key-Value Store |
| 8000 | TCP | HTTP-ALT | Common Alternate HTTP Port |
| 8080 | TCP | HTTP-ALT | Common Alternate HTTP Port / Proxy |
| 27017 | TCP | MongoDB | MongoDB Database |
This is a reference list of common ports. Browser security policies prevent direct client-side port scanning.
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