A practical guide to finding and nuking hidden watermarks in screenshots.

I finally tasted just how fragile the system gets when every single proxy drops dead, and the firewall sometimes even entirely drop 443. Somewhere out here, people are trapped in this suffocating l...

Continue disrupted downloads with aria2c A browser download doesn’t save a proper “partial file” + “resume metadata” in the way wget or curl do. Firefox usually writes to something like file.part,...

Goal Set up a 2×2 video wall using the Raspberry Pi, connected to a projector via HDMI, and then project it onto the wall. The easiest path on a Pi is to let FFmpeg tile the 4 RTSP feeds, and pipe...

Background I was trying to set the Custom 1 protocol source path so I could play the camera video on my desktop. By mistake, I changed the protocol from Hikvision to Custom 1 for the D1, D2, and D...

This deep-dive covers NAT, CGNAT, dynamic and shared public IPs, AWS jump boxes, BGP/IXP routing, TCP quirks, censorship, DNS/HTTPS privacy, and practical remote access hacks.

What is Reverse SSH It’s like instead of you SSH’ing into your home PC, your home PC SSHs out to a VPS you own. Then later, you use another device ssh to that VPS, and secretly slip back into your...

From Judit Polgár's chess rounds to kitchen multitasking, here's how to finally understand async IO, concurrency, threading, and multiprocessing in Python-with vivid analogies and cute code.

build a dual-script video extractor from raw .m3u8 or direct .ts links, with async download, DevTools tactics, and ts-to-mp4 merging. Plus: guide for using link_dl.py & m3u8_dl.py.

Walkthrough for cracking encrypted ZIP files using zip2john + Hashcat. Includes how to solve the dreaded 'No hashes loaded' error when dealing with multi-file archives. Battle-tested and beginner-f...