If you found an open port in Part 1 that you don't recognize or no longer need, you should close it to reduce your attack surface.
This guide covers how to check open ports, how to open them manually via the Firewall, and how to close them for security.
netstat -ano | findstr LISTENING
Automate with scheduled PowerShell scripts logging changes.
Open ports are essential for network communication but can also be a security risk if left unchecked. Windows 11, like any modern OS, listens on several ports by default. Knowing what’s open, why, and how to control it is key to system hardening.
If a port is open but shouldn't be:
This prevents external traffic from reaching the port without stopping the application.
Enter your specific port number (e.g., 80 for web traffic or 443 for secure sites).
If you found an open port in Part 1 that you don't recognize or no longer need, you should close it to reduce your attack surface.
This guide covers how to check open ports, how to open them manually via the Firewall, and how to close them for security.
netstat -ano | findstr LISTENING
Automate with scheduled PowerShell scripts logging changes.
Open ports are essential for network communication but can also be a security risk if left unchecked. Windows 11, like any modern OS, listens on several ports by default. Knowing what’s open, why, and how to control it is key to system hardening. windows 11 open ports
If a port is open but shouldn't be:
This prevents external traffic from reaching the port without stopping the application. If you found an open port in Part
Enter your specific port number (e.g., 80 for web traffic or 443 for secure sites).