Rahul Dhawan is a senior security engineer with 6 years of experience securing distributed systems, building internal security platforms, and leading initiatives across WAF, data security, logging, and detection. He writes technical breakdowns grounded in real-world deployments, with an eye for architecture, automation, and reliability under pressure.
I am open to offering my services for mentoring, freelancing, and consultancy, among other possibilities.
Jul 12, 2025 路 9 min read 路 馃敋 TL;DR: Every SSRF defense you think is bulletproof has been bypassed in production. This guide shows you how attackers think, what defenses actually work, and gives you a hands-on lab to test everything yourself. Why SSRF Still Matters in 2025 S...
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Jun 8, 2025 路 15 min read 路 When integrating Cloudflare鈥檚 Web Application Firewall (WAF) into mature, production-grade infrastructure鈥攏ot a simple hello-world setup鈥攖he internet offers little guidance. This post is for architects and engineers deploying Cloudflare at scale, ens...
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May 30, 2021 路 12 min read 路 Overview In this post, I'm going to explain the working of the GNU debugger tool. By the end of this post, you will be able to do the following operation using GDB: See how the processor executes the programs. Step through the instruction line by l...
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May 23, 2021 路 13 min read 路 Overview Valentine is an easy machine on HackTheBox. Being a retired machine, it can only be accessed by subscribing to HTB. This autopsy will include the exploitation of Heartbleed Vulnerability and Privilege escalation using the TMUX terminal sessi...
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