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1. setup-netfilter setup-netfilter Public

   A collection of shell scripts that build a config file for use with NetFilter.

   Shell

2. Minimising required CPU cycles for a... Minimising required CPU cycles for a task

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   Would a compiler or AI LLM ever generate the following code?

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   I needed to convert IP addresses in CIDR format to a numeric `u32` value for it's start and end addresses.

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   Typically, one would iterate forward. In this case, iterating in reverse is best:

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3. Analysis of Stanford's "Bit Twiddlin... Analysis of Stanford's "Bit Twiddling Hacks" (Kinda)

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   https://graphics.stanford.edu/~seander/bithacks.html

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   Determining if an integer is a power of 2

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   ```

4. "Best Practices" for 'C' compilation... "Best Practices" for 'C' compilation, assembly and linkage

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   As during development; YAGNI: you ain't gonna need it.

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   `gcc` has some cool features to ensure that you're putting out minimal, correct code:

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   ### ! -g

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   If it's available outside your network; don't include debugging symbols with the `-g` flag: it makes it far too easy to reverse engineer.

5. Defending against static analysis Defending against static analysis

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   In the above example, strings are passed to `void handle_exit(str, strlen)` literally. These would be stored in the binary closely to how they are written, and this would make it fairly easy to understand the flow of execution with a little effort.

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   A method to harden your program could be:

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   Call a `vec8* get_message(enum_msg_code message_code)`,

6. Memory Layout Hardening or '++ASLR' Memory Layout Hardening or '++ASLR'

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   Randomise your struct layout!

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   Instead of the following:

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   ```

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   #define VEC8_INITIAL_SIZE 32