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Regex (Regular Expressions)

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Regex (short for Regular Expressions) is a powerful tool used for searching, matching, and manipulating text based on specific patterns. Understanding and mastering this tool involves learning its syntax, operators, and advanced features. Basics Literals Match exact characters. E.g. ‘cat’ matches the string “cat” Metacharacters Special characters with unique meanings MetacharacterMeaning.Matches...

How NAT and PAT Works

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Network Address Translation (NAT) This is a method that allows multiple devices on a local network to be mapped to a single public IP address, which conserves the number of public IP addresses needed. How it works Private to Public - When a device on a private...

PE Headers and Sections Explained

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The Portable Executable (PE) format is a file format for executables, object code, DLLS, and others used in Windows operating systems. The structure of a PE file includes several headers, each serving a specific purpose. Understanding those are crucial for reverse engineering, debugging, and malware...