Proxy Firewall Overview
What is a Proxy Firewall?
Unlike traditional firewalls, a proxy firewall works at the application layer — acting as a middleman between users and your internal servers.
It creates its own process that mirrors services like:
HTTP → Web proxy
FTP → File transfer proxy
SMTP → Email proxy
Instead of direct connections, all traffic is filtered through the proxy first, inspected, and then safely forwarded.
Result: attackers never talk to your real servers, only to the proxy.