PORT 3002 / TCPDev & LocalhostExposure Risk: Low

Port 3002: Microservice Dev HTTP — Tertiary Local Development & Monorepo Service Port

Frequently assigned to auxiliary microservices, Storybook, or Turborepo apps in multi-app local workspaces.

Default Service

Microservice Dev HTTP

Process: node

Transport Protocol

TCP

IANA Registered Port 3002

Docker Port Flag

-p 3002:3002

Container to Host Mapping

How to Check & Kill Process on Port 3002 (EADDRINUSE Fix)

macOS & Linux (lsof / kill)

# Find process using port 3002
sudo lsof -i :3002

# Instantly kill process on port 3002
lsof -ti:3002 | xargs kill -9

Windows (PowerShell & CMD)

# Find PID listening on port 3002
netstat -ano | findstr :3002

# Force kill by PID
taskkill /PID <PID_NUMBER> /F

Cross-Platform Node.js One-Liner

# Kill port 3002 via npx
npx kill-port 3002

# Or diagnose via Castov CLI
npx castov fix "EADDRINUSE :::3002"

Linux Firewall (UFW) & Connectivity Test

# Test if port 3002 is reachable
nc -zv localhost 3002

# Allow or deny port 3002 in UFW
sudo ufw allow 3002/tcp

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Frequently Asked Questions about Port 3002

What is Port 3002 used for?

Port 3002 is the standard network port for Microservice Dev HTTP (Tertiary Local Development & Monorepo Service Port) operating over TCP. The typical system daemon or process is node.

How do I kill a process running on Port 3002 (EADDRINUSE)?

On macOS and Linux, run: lsof -ti:3002 | xargs kill -9 (or npx kill-port 3002). On Windows PowerShell/CMD, run: netstat -ano | findstr :3002 and then taskkill /PID <PID> /F.

Is it safe to expose Port 3002 to the internet?

Port 3002 has a Low security risk profile. Frequently assigned to auxiliary microservices, Storybook, or Turborepo apps in multi-app local workspaces.