ai
Building a Bayesian Spam Classifier from First Principles
We work through the original Bayesian Spam Classifier paper from Microsoft Research. And then make it practical by applying to the Enron spam dataset
Latest
clamav
CAVLite: Lightweight, Memory-Efficient Security Audit for Low-RAM Servers.
If you run a server with limited resources—specifically, standard 4GB RAM and 2 vCPU setup- you are likely familiar with the constant, stressful balancing act between performance and security. You know you need antivirus protection and system audits. You know the risks of leaving a server vulnerable to intruders,
ufw
Announcing udwall: A New Tool for Making UFW and Docker Play Nice With Each Other
Many of us believe that the combination of UFW and Docker is the standard stack for deploying applications securely without exposing docker container ports. Configuring UFW via provisioning tools like Ansible is usually seamless, giving us confidence that our servers are secure. However, there is a massive, often overlooked security
llms
Stop Paying for LLMs — Run Your Own Locally
If you’re tired of hitting limits, waiting on slow responses, or paying monthly just to use an online model, there’s a better option. With Ollama, you can run powerful LLMs directly on your own machine.
web performance
Why Your Page Feels Slow (and Hurts Your PageSpeed Score): Render Blocking and Critical CSS Explained
Learn how render blocking CSS slows your site and how Critical CSS can help you boost your PageSpeed score.
svg
A Simple Guide to SVG and How It Works
When building logos, icons, or illustrations for the web, SVG (Scalable Vector Graphics) is one of the most powerful tools in a developer’s toolkit. Unlike raster images (PNG, JPEG, WebP), SVG is mostly resolution-independent and code-driven, meaning your graphics almost always stay sharp, lightweight, and infinitely scalable without quality
linux
Story of a TCP Packet: An Intuitive Entrypoint To Linux Networking
This post traces a TCP packet’s journey through Linux, explaining interfaces, iptables tables and chains, and the networking stack with an analogy, example, and technical details for engineers.
tcp
How TCP and UDP Protocols Work: Understanding Their Critical Role in Internet Communication
How does data travel from a server to your screen in a split second? What is the logic behind it? What rules and protocols does it use that make it all work?
Go
Fan-In and Fan-Out in Go: Parallelism Made Simple
Learn how to distribute work across multiple goroutines and merge their results back into a single stream using Go's Fan-Out and Fan-In patterns. We'll break down these powerful concurrency patterns with practical examples you can use right away.
seo
Control the SEO Ecosystem: Tags, Sitemaps, Backlinks, and Who Really Controls Search
A practical guide to metadata, sitemaps, authority, search engines, and how it all actually connects
postgres
Turning PostgreSQL into a Robust Queue for Go Applications
How to build a reliable task queue in Go using PostgreSQL’s built-in features—no extra infrastructure needed.
llm
LLM Fundamentals: How Large Language Models Work
Hello, I'm Maneshwar. I'm building *Free DevTools*, a single hub for developers with 50,000+ free resources, icons, cheat sheets, and TLDRs. No login, unlimited downloads.