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Series

My Cybersecurity Journey

A weekly documented journey from zero to cybersecurity — covering computing fundamentals, Linux, networking, and beyond. Every week includes notes, real bugs, code, and honest reflections.

  3. Linux Taught Me That Security Is Really About Boundaries — Week 03: Linux Fundamentals

    My Cybersecurity Journey | Week 03 | Learning in Public I thought Linux was just another operating system I needed to learn because every cybersecurity roadmap told me to. I was wrong. What I discovered this week is that Linux isn't really about commands. It's about understanding boundaries — who can access what, who owns what, what a process is allowed to do, and what happens when those boundaries are misconfigured. Durga Madhav Chandra · June 2026

    Jun 19, 20267 min read11
    Linux Taught Me That Security Is Really About Boundaries — Week 03: Linux Fundamentals

  4. Networking Taught Me That Every Attack Has an Address — Week 04: Networking Fundamentals

    My Cybersecurity Journey | Week 04 | Learning in Public I came into this week thinking networking was just memorising port numbers and subnet masks. I was wrong. What I discovered is that networking isn't really about memorising tables. It's about understanding traffic — where it comes from, where it goes, and what happens when someone lies about both. 𝘿𝙪𝙧𝙜𝙖 𝙈𝙖𝙙𝙝𝙖𝙫 𝘾𝙝𝙖𝙣𝙙𝙧𝙖 · 𝙅𝙪𝙣𝙚 2026

    Jun 26, 202610 min read6
    Networking Taught Me That Every Attack Has an Address — Week 04: Networking Fundamentals

  5. Before You Defend a Network, You Must Understand Why It's Worth Defending — Week 05: Foundations, Risk, and Networks

    I expected this week to be the "easy" one. No packet captures, no terminal, no hands hurting from typing commands — just three foundational courses to read through. I was wrong in the opposite direction from last time: it wasn't hard because the material was technical, it was hard because it was deceptively simple, right up until a scenario asked me to actually use it. Durga Madhav Chandra · July 2026

    Jul 4, 202610 min read1
    Before You Defend a Network, You Must Understand Why It's Worth Defending — Week 05: Foundations, Risk, and Networks

  6. From Reading About Systems to Actually Running Them — Week 06: Linux, SQL, and Threat Modeling

    I expected this week to feel like a relief. After a week of pure reading — frameworks, definitions, diagrams — I was ready to get my hands back on a keyboard. What I didn't expect was how much louder the mistakes would be. Last week a wrong answer cost me a quiz question. This week a wrong command actually errors out, and a bad query actually returns nothing. Durga Madhav Chandra · July 2026

    Jul 11, 202610 min read8
    From Reading About Systems to Actually Running Them — Week 06: Linux, SQL, and Threat Modeling