Network Engineering & DevOps Reference

Network Ports & IPv4 CIDR Subnet Encyclopedia

Instant lookup for standard TCP/UDP port numbers, process termination commands (Linux, macOS, Windows), Docker port mappings, and IPv4 CIDR subnet calculations.

Common TCP/UDP Network Ports

File Transfer Protocol (Data Channel)

vsftpd / proftpd

File Transfer Protocol (Command Control)

Secure Shell, SCP, SFTP, and Port Forwarding

Unencrypted Text Communications

Simple Mail Transfer Protocol (Server-to-Server Relay)

Domain Name System Resolver & Server

named / systemd-resolved / dnsmasq

Hypertext Transfer Protocol (Unencrypted Web)

nginx / apache2 / caddy

Post Office Protocol v3 (Unencrypted)

Network Time Protocol Clock Sync

Internet Message Access Protocol

Port 443TCP/UDP

HTTP Secure over TLS/SSL & HTTP/3 (QUIC)

nginx / caddy / traefik

Server Message Block (Windows File Sharing)

Authenticated SMTP over Implicit TLS

SMTP Submission

Authenticated Email Submission (STARTTLS)

IMAP over TLS/SSL

POP3 over TLS/SSL

Microsoft SQL Server Database Engine

Oracle Net Listener

Unencrypted Docker Remote API

Encrypted Docker Remote API

Next.js / Node / React

Default Local Development Server (Next.js, Express, Grafana)

node / next-server

MySQL / MariaDB

MySQL & MariaDB Relational Database

mysqld / mariadbd

Port 3389TCP/UDP

Microsoft Remote Desktop Protocol

svchost.exe (TermService)

GraphQL / Phoenix / Ghost

Apollo GraphQL Server & Elixir Phoenix Dev Port

node / beam.smp

Angular Development Server (ng serve)

Flask / .NET / AirPlay

Python Flask, ASP.NET Core, Docker Registry & macOS AirPlay

python / ControlCenter

Vite Dev Server

Vite Frontend Build Tool (React, Vue, Svelte)

PostgreSQL Database Server & Supabase Local

RabbitMQ (AMQP)

Advanced Message Queuing Protocol

Redis In-Memory Data Store & Cache

Kubernetes Control Plane API Server

Django / FastAPI / Uvicorn

Python Web Frameworks & PHP Artisan Serve

HTTP Alternate / Tomcat / Proxy

Alternative HTTP Port, Spring Boot, Jenkins & Reverse Proxies

java / nginx / node

HTTPS Alternate

Alternative HTTPS Port & UniFi Controller

Jupyter Notebook

JupyterLab & Interactive Python Notebooks

jupyter-notebook

PHP-FPM / SonarQube / MinIO

PHP FastCGI Process Manager, MinIO S3 & Portainer

php-fpm / minio

Prometheus / Cockpit

Prometheus Metrics Server & Linux Cockpit Web UI

Elasticsearch REST HTTP API

java (elasticsearch)

Port 11211TCP/UDP

Memcached Distributed Memory Caching

Ollama Local LLM

Ollama Local AI Model Server REST API

RabbitMQ Management

RabbitMQ Web Management Dashboard

MongoDB NoSQL Database Server (mongod)