August 18, 2026
10 min read
Mutation Testing: Beyond Code Coverage
Mutation testing goes beyond code coverage by injecting faults to verify test quality, revealing gaps that line coverage misses in production PHP applications.
August 15, 2026
10 min read
Database Sharding Explained with Real Example
Database sharding explained with real example patterns for Laravel and MySQL, covering when to shard, key selection, and operational trade-offs in 2026.
September 10, 2026
11 min read
iptables Firewall Rules Explained
iptables firewall rules explained with tables, chains, match targets, and copy-paste examples for Ubuntu web servers you can persist safely in production.
August 25, 2026
9 min read
Ubuntu Repository Management Guide
This Ubuntu Repository Management Guide covers configuring sources, managing PPAs, fixing GPG errors, and securing package installs for production servers in 2026.
September 11, 2026
11 min read
Ubuntu DNS Configuration Guide
This Ubuntu DNS Configuration Guide covers Netplan, systemd-resolved, dnsmasq, and troubleshooting for reliable name resolution on Ubuntu 22.04 and 24.04 servers.
September 10, 2026
12 min read
Service Mesh for Multi-Cloud Kubernetes
Service Mesh for Multi-Cloud Kubernetes adds mTLS, traffic policy, and observability across clusters on AWS, GCP, Azure, and on-prem without rewriting apps.
