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Common Network Ports
Search and reference standard TCP/UDP port assignments and their associated services.
| Port | Protocol | Service Name | Description | Type |
|---|---|---|---|---|
| 20 | TCP | FTP | File Transfer Protocol (Data Transfer) | System (0-1023) |
| 21 | TCP | FTP | File Transfer Protocol (Command Control) | System (0-1023) |
| 22 | TCP | SSH | Secure Shell / SFTP | System (0-1023) |
| 23 | TCP | Telnet | Unencrypted text communications | System (0-1023) |
| 25 | TCP | SMTP | Simple Mail Transfer Protocol (Routing) | System (0-1023) |
| 53 | TCP/UDP | DNS | Domain Name System | System (0-1023) |
| 67 | UDP | DHCP | Dynamic Host Configuration Protocol (Server) | System (0-1023) |
| 68 | UDP | DHCP | Dynamic Host Configuration Protocol (Client) | System (0-1023) |
| 80 | TCP | HTTP | Hypertext Transfer Protocol | System (0-1023) |
| 110 | TCP | POP3 | Post Office Protocol (Email Receipt) | System (0-1023) |
| 119 | TCP | NNTP | Network News Transfer Protocol | System (0-1023) |
| 123 | UDP | NTP | Network Time Protocol | System (0-1023) |
| 135 | TCP/UDP | MSRPC | Microsoft RPC Endpoint Mapper | System (0-1023) |
| 137 | TCP/UDP | NetBIOS | NetBIOS Name Service | System (0-1023) |
| 139 | TCP/UDP | NetBIOS | NetBIOS Session Service | System (0-1023) |
| 143 | TCP | IMAP | Internet Message Access Protocol | System (0-1023) |
| 161 | UDP | SNMP | Simple Network Management Protocol | System (0-1023) |
| 389 | TCP/UDP | LDAP | Lightweight Directory Access Protocol | System (0-1023) |
| 443 | TCP | HTTPS | HTTP Secure (TLS/SSL) | System (0-1023) |
| 445 | TCP | SMB | Microsoft Active Directory, Windows shares | System (0-1023) |
| 465 | TCP | SMTPS | SMTP Secure (TLS/SSL) | System (0-1023) |
| 500 | UDP | ISAKMP | Internet Key Exchange (IPsec) | System (0-1023) |
| 514 | UDP | Syslog | System Logging Protocol | System (0-1023) |
| 587 | TCP | SMTP | SMTP Message Submission | System (0-1023) |
| 636 | TCP | LDAPS | LDAP Secure (TLS/SSL) | System (0-1023) |
| 993 | TCP | IMAPS | IMAP Secure (TLS/SSL) | System (0-1023) |
| 995 | TCP | POP3S | POP3 Secure (TLS/SSL) | System (0-1023) |
| 1433 | TCP | MSSQL | Microsoft SQL Server database | Registered |
| 1521 | TCP | Oracle | Oracle database default listener | Registered |
| 1723 | TCP | PPTP | Point-to-Point Tunneling Protocol | Registered |
| 2049 | TCP/UDP | NFS | Network File System | Registered |
| 3306 | TCP | MySQL | MySQL / MariaDB database | Registered |
| 3389 | TCP/UDP | RDP | Remote Desktop Protocol | Registered |
| 5432 | TCP | PostgreSQL | PostgreSQL database system | Registered |
| 5900 | TCP/UDP | VNC | Virtual Network Computing | Registered |
| 6379 | TCP | Redis | Redis key-value store | Dynamic/Private |
| 8080 | TCP | HTTP-Alt | Alternative HTTP port (Tomcat, proxies) | Dynamic/Private |
| 8443 | TCP | HTTPS-Alt | Alternative HTTPS port | Dynamic/Private |
| 27017 | TCP | MongoDB | MongoDB database daemon | Dynamic/Private |