Port 3000 — Dev HTTP

TCP · Port 3000/TCP is used for the Dev HTTP service, a development-oriented web server that allows developers to test and prototype web applications. This port is often used by developers to host their own websites or APIs during the development process.

Port Number: 3000
Service Name: Dev HTTP
Protocol: TCP
Common Software: Node.js, Grafana, Rails

Security Notes

Review IANA registry for port 3000 usage. Apply principle of least privilege - only open ports that are required.

FAQ

What is port 3000 used for?

Port 3000 is used for Dev HTTP. Port 3000/TCP is used for the Dev HTTP service, a development-oriented web server that allows developers to test and prototype web applications. This port is often used by developers to host their own websites or APIs during the development process. Common software: Node.js, Grafana, Rails.

Is port 3000 dangerous to leave open?

Review IANA registry for port 3000 usage. Apply principle of least privilege - only open ports that are required.

How do I check if port 3000 is open?

Use nmap: nmap -p 3000 <target> or check locally: ss -tlnp | rg 3000