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Bypass Firewall by Finding Origin IP
Firewalls are critical components of network security, designed to block unauthorized access while permitting authorized communication. They act as a barrier between a trusted network and an untrusted one, such as the internet. However, understanding how to bypass a firewall by discovering the origin IP of a server can be a valuable exercise for security professionals and ethical hackers looking to identify vulnerabilities in a system.
This guide will explore various methods to find the origin IP of a server hidden behind a firewall, along with the necessary code snippets and tools. It’s important to note that the techniques discussed here are for educational purposes only, and unauthorized use of these methods is illegal.
What is an Origin IP?
The origin IP is the true IP address of a server hosting a web application or website. When a firewall or content delivery network (CDN) like Cloudflare is employed, it acts as a proxy, masking the server’s actual IP address to protect it from direct attacks. Attackers often seek to discover the origin IP to bypass the protection provided by the firewall or CDN and launch attacks directly against the server.
