Blog
Linux Troubleshooting and Debugging Guide
A comprehensive Linux troubleshooting guide covering boot issues, CPU and memory problems, disk I/O, networking, services, permissions, and every essential debugging command with practical examples.
Self-Hosting ntfy: Push Notifications Under 50MB RAM
A complete guide to setting up ntfy on a 1GB Debian Lightsail instance with Nginx, Let's Encrypt, WebSocket support, and Jenkins CI integration.
Building a Production Kubernetes Cluster on Bare Metal
A complete walkthrough for setting up a 3-node on-premise Kubernetes v1.35 cluster on Ubuntu 24.04 with Calico CNI, MetalLB, NGINX Ingress, and local-path storage.
Kubernetes Troubleshooting Guide for Operators and Administrators
A comprehensive, production-focused Kubernetes troubleshooting guide covering pods, services, storage, nodes, networking, RBAC, and control plane issues with runbook-style diagnostic steps and resolution strategies.
Learning Function Signatures in 3 Weeks/21 days
Function Signatured for system design and developing complex systems without thinking about the details