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developer-roadmap/roadmaps/network-engineer/content/proxy@55_hR5xJzermyLb3lyAvO.md
Arik Chakma 274082fd77 feat: clean roadmap content and sync scripts (#10181)
* refactor: clean to roadmap content

* refactor: move shared helpers into scripts/lib
2026-07-28 05:45:17 +06:00

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# Proxy
A proxy firewall operates at the application layer and acts as an intermediary between internal clients and external servers, inspecting the full content of network requests and responses. Instead of allowing direct connections, all traffic is routed through the proxy, which can apply content filtering, authentication, and logging. Because it terminates and re-establishes each connection, a proxy firewall provides deep inspection but can introduce latency.
Visit the following resources to learn more:
- [@article@What Is A Proxy Firewall?](https://www.fortinet.com/resources/cyberglossary/proxy-firewall)
- [@video@Types of Firewalls Explained](https://www.youtube.com/watch?v=IbimC-tx7XI)
- [@video@What is a Proxy Server?](https://www.youtube.com/watch?v=5cPIukqXe5w)