Firewall
securityintermediate
network securityprotectiontraffic filtering
A network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
Examples
Router firewall
Built-in firewall blocks unsolicited incoming connections
Windows Firewall
Software firewall protecting individual computer
Optimization Tips
Keep firewall enabled but configure exceptions for games/apps
Review firewall logs periodically
User Impact
Security
Protects against unauthorized access and malware
Gaming/Apps
May need port forwarding for some services