@programmerzero

One Request Too Many: Understanding and Surviving DoS & DDoS Attacks

May 4, 2025 · 4 min read · "It wasn’t a bug, it was a full-blown digital riot."— Me, after seeing 1000 threads spin up in production from one rogue IP. Welcome to the wonderful world of DoS and DDoS attacks. If you've ever wondered what happens when the internet decides your ...

The Hidden Danger of GROUP BY in MySQL: How PostgreSQL Saves You

Apr 26, 2025 · 4 min read · Have you ever written a GROUP BY query, got results, and thought, "Hmm... something feels weird, but hey! it runs right?" If yes congratulations, you’ve stumbled upon one of SQL’s most interesting (and dangerous) traps: loose GROUP BY behavior espe...

The Bridge That Broke My Internet💔

Apr 20, 2025 · 3 min read · We all would’ve studied about different types of connections in Computer Networks. One of them is the humble bridge connection. But what if I told you this innocent-looking "Bridge Connection" actually broke my internet and had me scratching my head ...

Mastering Comparator in Java – Sorting Made Fun!

Mar 31, 2025 · 3 min read · Sorting is like cleaning our room something we know we should do but often put off. Thankfully, Java’s Comparator makes sorting so effortless that we can stop procrastinating and actually get it done (or at least, pretend to). The Basics – Comparator...

"this" Keyword in Java

Mar 23, 2025 · 4 min read · If you’ve been coding in Java for a while, you’ve probably met this. No, not that “this” where you forget why you walked into a room. We're talking about Java’s “this” a small but powerful keyword that saves us from naming disasters, constructor conf...