Firewall: Essential Network Security Explained

Understanding the Basics

A firewall is a fundamental network security component that acts as a gatekeeper. It monitors incoming and outgoing network traffic, analyzing data packets against a set of security rules. These rules decide whether to allow or block specific traffic, providing the first line of defense against unauthorized access, malware, and other threats.

Types of Firewalls

Firewalls and Netrinos: High Compatibility

Firewalls typically focus on protecting a network from hostile inbound traffic. However, if you are on the inside, getting out is usually not a problem. Netrinos takes advantage of this fact and uses only outbound connections from within a network. Then it coordinates these outbound connections so they can connect back to each other. For this reason, firewalls seldom get in the way.

Key Takeaways