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Search a local reference of common network services and their ports.
50 of 50 entries
| Port | Service | Transport | Description |
|---|---|---|---|
20 | FTP data | TCP | Active-mode file transfer data |
21 | FTP control | TCP | File transfer commands |
22 | SSH / SFTP | TCP | Secure shell and file transfer |
23 | Telnet | TCP | Unencrypted remote terminal |
25 | SMTP | TCP | Mail relay between servers |
53 | DNS | TCP/UDP | Name resolution; TCP also used for zone transfers |
67 | DHCP server | UDP | IPv4 address allocation server |
68 | DHCP client | UDP | IPv4 address allocation client |
69 | TFTP | UDP | Trivial file transfer |
80 | HTTP | TCP | Web traffic |
88 | Kerberos | TCP/UDP | Ticket-based authentication |
110 | POP3 | TCP | Mail retrieval |
123 | NTP | UDP | Network time synchronization |
135 | MS RPC | TCP/UDP | Microsoft RPC endpoint mapper |
137 | NetBIOS name | TCP/UDP | NetBIOS name service |
138 | NetBIOS datagram | UDP | NetBIOS datagram service |
139 | NetBIOS session | TCP | Legacy SMB sessions |
143 | IMAP | TCP | Mailbox access |
161 | SNMP | UDP | Network monitoring queries |
162 | SNMP traps | UDP | Monitoring notifications |
179 | BGP | TCP | Border Gateway Protocol |
389 | LDAP | TCP/UDP | Directory access; UDP connectionless LDAP |
443 | HTTPS | TCP/UDP | TLS web traffic; HTTP/3 uses UDP |
445 | SMB | TCP | Windows file and printer sharing |
465 | Submission over TLS | TCP | Implicit TLS email submission |
500 | IKE | UDP | IPsec key exchange |
514 | Syslog | UDP | Traditional system log transport |
546 | DHCPv6 client | UDP | IPv6 configuration client |
547 | DHCPv6 server | UDP | IPv6 configuration server |
587 | Mail submission | TCP | Authenticated email submission |
636 | LDAPS | TCP | Directory access over TLS |
853 | DNS over TLS / QUIC | TCP/UDP | Encrypted DNS transport |
993 | IMAPS | TCP | IMAP over TLS |
995 | POP3S | TCP | POP3 over TLS |
1194 | OpenVPN | TCP/UDP | Configurable VPN transport |
1433 | Microsoft SQL Server | TCP | Database connections |
1812 | RADIUS authentication | UDP | Network access authentication |
1813 | RADIUS accounting | UDP | Network access accounting |
2049 | NFS | TCP/UDP | Network file system |
3306 | MySQL | TCP | MySQL database |
3389 | RDP | TCP/UDP | Remote Desktop Protocol |
4500 | IPsec NAT-T | UDP | IPsec NAT traversal |
5432 | PostgreSQL | TCP | PostgreSQL database |
5900 | VNC | TCP | Remote framebuffer |
6379 | Redis | TCP | In-memory data store |
8080 | HTTP alternate | TCP | Common alternative web port |
8443 | HTTPS alternate | TCP | Common alternative TLS web port |
9100 | JetDirect | TCP | Raw network printing |
27017 | MongoDB | TCP | Database connections |
51820 | WireGuard | UDP | Common configurable WireGuard listen port |