Category Archives: Linux

Exfiltrating data using ICMP protocol

Posted on April 15, 2025 by Hamza Saleh

The main objective of this article is to demonstrate how ICMP packet could be used to exfiltrate data using Python. I’ll cover the following: What is ICMP protocol ICMP, or Internet Control Message Protocol, is a supporting protocol in the … Continue reading →

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How to send a random alphanumeric in Postman

Posted on March 4, 2025 by Ahmed Tawfik

If you have a kind of session ID or something that you are passing in your payload in your request on postman and you want it to be generated randomly with each call, use the randomAlphaNumberic function as follows: In … Continue reading →

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How to Tame Your Dragon, aka LLM!

Posted on February 21, 2025 by Ahmed Tawfik

I’m planning to create a series of articles/videos on how to effectively “tame” an LLM to enforce structured output for programmatic use. The goal is to make AI responses predictable, reliable, and easily consumable by applications. What do you think?

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Renewing DHCP Lease from Ubuntu 24.04 Server

Posted on February 21, 2025 by Ahmed Tawfik

Just found out that Ubuntu 24.04 server doesn’t use dhclient anymore and uses dhcpcd instead for obtaining dhcp address leases. To renew your dhcp address, do the following: That’s it, Enjoy! Sources: https://askubuntu.com/questions/1511816/how-to-renew-ip-address-with-ubuntu-24-04

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Docker file & compose for phpBB3

Posted on January 31, 2025 by Ahmed Tawfik

I needed a local instance to play around with phpBB, which I couldn’t find recent docker files for, so I just created my own. The below are the docker-compose.yml and Dockerfile for the latest version of phpBB as of now; … Continue reading →

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