Creating a CI/CD Pipeline with GitLab Runner on a VPS
Master GitLab Runner setup on a VPS with hardened Docker executors, caching, and CI/CD pipelines. Boost build speeds and cut shared runner queue delays.
Databases & Performance
Configuring Uptime Kuma for Status Pages and Monitoring
Deploy an enterprise-grade Uptime Kuma setup for high-availability monitoring. Learn kernel tuning, SQLite WAL optimization, and resilient status pages.
How to Find and Kill Zombie Processes in Linux
Find, diagnose, and clean up Linux zombie processes. Prevent kernel PID table exhaustion and restore server performance.
Setting Up a Self-Hosted Docker Registry
Deploy a high-performance self-hosted Docker registry with TLS and htpasswd auth. Optimize CI/CD image pulls, cut egress latency, and secure container assets.
Understanding Docker Volumes and Bind Mounts
Master the core differences between Docker volumes and bind mounts. Learn how storage drivers, I/O bottlenecks, and permissions impact production containers.
How to Monitor Disk I/O Performance in Linux with iostat and iotop
Diagnose storage bottlenecks and process latency in Linux using iostat and iotop with battle-tested metrics, production sysctl tuning, and triage playbooks.
Migrating from iptables to nftables: What You Need to Know
Migrate legacy iptables firewalls to nftables with zero downtime. Master unified IPv4/IPv6 syntax, atomic commits, and O(1) set performance.
Using iptables to Secure Your Linux Server
Master the iptables rules tutorial for Linux servers. Learn packet filtering architectures, connection tracking, rate limiting, and hardened setups.
Configuring Nginx as a Reverse Proxy for Node.js Applications
Master production-grade Nginx reverse proxy architecture for Node.js. Includes complete configs, TLS hardening, WebSocket proxying, and benchmark data.
How to Host a Static Website with Caddy Server
Master Caddy Server for hosting static sites with automated HTTPS, HTTP/3, and Zstandard compression. Learn enterprise configurations and Linux kernel tuning.