Definition and Purpose

In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on configurable security rules. A firewall typically establishes a barrier between a trusted network and an untrusted network, such as the Internet or between several VLANs. Firewalls can be categorized as network-based or host-based.

The primary purpose of a firewall is to protect a computer network by monitoring and controlling incoming and outgoing traffic based on predefined security rules. It acts as a barrier between trusted internal networks and untrusted external sources (like the internet), helping to prevent unauthorized access, malware, and cyberattacks.

Enhancing Firewall Security with GateKeeper‘s Access Control

Firewalls are essential for protecting networks from unauthorized external traffic, but they can't prevent internal misuse or stolen credentials. GateKeeper strengthens your security beyond the firewall by enforcing proximity-based authentication, automatic locking, and user-specific access control. Together with your firewall, GateKeeper forms a layered defense that secures both the network perimeter and internal endpoints.