To filter for specific ports:
: Search for "Windows Defender Firewall with Advanced Security" in the Start menu or find it under Settings > Privacy & security > Windows Security > Firewall & network protection > Advanced settings .
The column after the IP address displays the active port number (e.g., 127.0.0.1:443 means port 443 is open). windows 11 open ports
Network ports act as the virtual doors and windows of your operating system. For Windows 11 to communicate with the internet, local printers, or smart devices, it relies on these ports to route data packets to the correct application. However, leaving the wrong ports open is like leaving your front door unlocked. Cybercriminals constantly scan the internet for exposed, vulnerable ports to gain unauthorized access to systems.
This guide covers how to check, open, and manage ports in Windows 11 securely. Part 1: How to Check Which Ports Are Currently Open To filter for specific ports: : Search for
Used for Windows file and printer sharing. Highly targeted by network worms (e.g., WannaCry). 3389
This lists all active connections and the ports they are using. To find a specific port (e.g., 8080), use: netstat -ano | find "8080" Step-by-Step: How to Open a Port in Windows 11 For Windows 11 to communicate with the internet,
To ensure your Windows 11 device is secure and protected, follow these best practices:
To open a port (e.g., for a game server or web server), you need to create an Inbound Rule in Windows Defender Firewall with Advanced Security. Step-by-Step Instructions:
Part 1: How to Open a Port in Windows 11 Firewall (Inbound Rules)