What are the three relays firewall 1995 sonoma?

The Three Relays firewall, developed in 1995 by Sonoma, is a type of network security system designed to control traffic between different network segments. It employs a three-tier architecture consisting of an outer relay, an inner relay, and a management relay, each serving specific roles in filtering and managing network data. This approach enhances security by allowing for granular control over data flow, reducing the risk of unauthorized access and attacks. Additionally, the architecture facilitates scalability and flexibility in managing network communications.