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Firewall Penetration Testing: Definition, Process and Tools

The episode explains firewall penetration testing, detailing its purpose of validating filtering rules and boundary controls to prevent unwanted traffic. It walks through a 14‑step methodology—from discovery and port scanning to firewalking, NAT testing, and rule‑base analysis—highlighting the tools (Nmap, Masscan, Hping3, Scapy, etc.) used at each stage. Key takeaways include the importance of clear scope, proper authorisation (LOA and ROE), and common vulnerabilities such as permissive rules, weak admin access, and logging gaps. The host emphasizes that manual, traffic‑based testing uncovers configuration flaws that automated scanners often miss.