How do I kill the process using port 5000?

On macOS & Linux, run: "kill -9 $(lsof -t -i:5000)". On Windows PowerShell (as Admin), run: "Stop-Process -Id (Get-NetTCPConnection -LocalPort 5000).OwningProcess -Force".

Why am I getting "port 5000 already in use" (EADDRINUSE)?

This occurs when another background instance of python, flask, AirPlayXPCHelper or a zombie process is already bound to port 5000. Use the kill commands above to free the port immediately.

Web & Dev

Risk: Low

Port 5000 — Flask / Python Web / Docker Registry

Q: Is Port 5000 safe to expose to the public internet?

Risk level is Low. On macOS, disable "AirPlay Receiver" in System Settings > Sharing if port 5000 causes conflict errors with your Python or Docker servers.

Port 5000 is the default port used by Python Flask, ASP.NET Core, and the official Docker Registry. On macOS Monterey and later, Apple AirPlay Receiver binds to 5000 by default.

PORT NUMBER

5000

PROTOCOL

TCP

DEFAULT PROCESS

python, flask, AirPlayXPCHelper

FIREWALL TARGET

5000/tcp

Instant Terminal Fixes for Port 5000

macOS & Linux Terminal

1. Check who is listening on port 5000:

lsof -i :5000

2. Kill process occupying port 5000 (EADDRINUSE fix):

kill -9 $(lsof -t -i:5000)

3. UFW Firewall Allow rule:

sudo ufw allow 5000/tcp

Windows PowerShell (Admin)

1. Check listening port:

Get-NetTCPConnection -LocalPort 5000

2. Force kill process on port 5000:

Stop-Process -Id (Get-NetTCPConnection -LocalPort 5000).OwningProcess -Force

3. Docker Port Forwarding Mapping:

docker run -p 5000:5000 -d registry:2

Common Error Encountered

OSError: [Errno 48] Address already in use (Often macOS AirPlay on port 5000)

Security Advisory & Hardening

On macOS, disable "AirPlay Receiver" in System Settings > Sharing if port 5000 causes conflict errors with your Python or Docker servers.

Frequently Asked Questions

Port 5000 Questions & Answers

Common questions regarding default services, kill commands, and firewall configurations.

Port 5000 is commonly used for Flask / Python Web / Docker Registry. Port 5000 is the default port used by Python Flask, ASP.NET Core, and the official Docker Registry. On macOS Monterey and later, Apple AirPlay Receiver binds to 5000 by default.

Explore Other Developer Ports

View All Ports Directory

Port 3000React Port 8080HTTP Alternate Port 5173Vite Dev Server (Vue, Svelte, React)Port 80HTTP (Hypertext Transfer Protocol)Port 443HTTPS (HTTP over TLS Port 8000Django