Port Reference
Searchable dictionary of common network ports and services
| Port | Protocol | Service | Description | Category |
|---|---|---|---|---|
| 20 | TCP | FTP Data | File Transfer Protocol data transfer | File Transfer |
| 21 | TCP | FTP Control | File Transfer Protocol control | File Transfer |
| 22 | TCP | SSH | Secure Shell, secure remote login | Remote Access |
| 23 | TCP | Telnet | Unencrypted remote login (insecure) | Remote Access |
| 25 | TCP | SMTP | Simple Mail Transfer Protocol | |
| 53 | TCP/UDP | DNS | Domain Name System queries | DNS |
| 67 | UDP | DHCP Server | Dynamic Host Configuration Protocol | Network |
| 68 | UDP | DHCP Client | DHCP client communication | Network |
| 69 | UDP | TFTP | Trivial File Transfer Protocol | File Transfer |
| 80 | TCP | HTTP | Hypertext Transfer Protocol (web) | Web |
| 110 | TCP | POP3 | Post Office Protocol v3 | |
| 119 | TCP | NNTP | Network News Transfer Protocol | News |
| 123 | UDP | NTP | Network Time Protocol | Network |
| 143 | TCP | IMAP | Internet Message Access Protocol | |
| 161 | UDP | SNMP | Simple Network Management Protocol | Network |
| 162 | UDP | SNMP Trap | SNMP trap notifications | Network |
| 389 | TCP | LDAP | Lightweight Directory Access Protocol | Directory |
| 443 | TCP | HTTPS | HTTP over TLS/SSL (secure web) | Web |
| 445 | TCP | SMB | Server Message Block (file sharing) | File Transfer |
| 465 | TCP | SMTPS | SMTP over SSL (deprecated) | |
| 514 | UDP | Syslog | System logging | Logging |
| 587 | TCP | SMTP Submission | Email message submission | |
| 636 | TCP | LDAPS | LDAP over SSL | Directory |
| 993 | TCP | IMAPS | IMAP over SSL | |
| 995 | TCP | POP3S | POP3 over SSL | |
| 1433 | TCP | MS SQL | Microsoft SQL Server | Database |
| 1521 | TCP | Oracle | Oracle Database | Database |
| 3306 | TCP | MySQL | MySQL Database Server | Database |
| 5432 | TCP | PostgreSQL | PostgreSQL Database | Database |
| 6379 | TCP | Redis | Redis key-value store | Database |
| 27017 | TCP | MongoDB | MongoDB NoSQL Database | Database |
| 9200 | TCP | Elasticsearch | Elasticsearch REST API | Database |
| 9042 | TCP | Cassandra | Apache Cassandra CQL | Database |
| 3000 | TCP | Node.js Dev | Common Node.js development port | Development |
| 4000 | TCP | Dev Server | Common development server port | Development |
| 5000 | TCP | Flask/Dev | Flask, .NET, and other dev servers | Development |
| 8000 | TCP | Django/Dev | Django and Python dev servers | Development |
| 8080 | TCP | HTTP Alt | Alternative HTTP port, Tomcat | Web |
| 8443 | TCP | HTTPS Alt | Alternative HTTPS port | Web |
| 9000 | TCP | PHP-FPM | PHP FastCGI Process Manager | Web |
| 2375 | TCP | Docker | Docker daemon (unencrypted) | Container |
| 2376 | TCP | Docker TLS | Docker daemon (encrypted) | Container |
| 6443 | TCP | Kubernetes API | Kubernetes API server | Container |
| 10250 | TCP | Kubelet | Kubernetes node agent | Container |
| 5672 | TCP | RabbitMQ | RabbitMQ AMQP | Messaging |
| 9092 | TCP | Kafka | Apache Kafka broker | Messaging |
| 4222 | TCP | NATS | NATS messaging | Messaging |
| 9090 | TCP | Prometheus | Prometheus metrics server | Monitoring |
| 3100 | TCP | Loki | Grafana Loki log aggregation | Monitoring |
| 14268 | TCP | Jaeger | Jaeger tracing collector | Monitoring |
| 4317 | TCP | OTLP gRPC | OpenTelemetry gRPC | Monitoring |
| 4318 | TCP | OTLP HTTP | OpenTelemetry HTTP | Monitoring |
| 500 | UDP | IKE | Internet Key Exchange (IPSec) | VPN |
| 1194 | UDP | OpenVPN | OpenVPN default port | VPN |
| 1701 | UDP | L2TP | Layer 2 Tunneling Protocol | VPN |
| 51820 | UDP | WireGuard | WireGuard VPN | VPN |
Showing 56 of 56 ports