Autonomous BGP Anycast Routing Architecture with Bird2 on Linux Bare-Metal Nodes
Deploy high-availability BGP Anycast using Bird2 on Linux bare-metal nodes. Achieve sub-second failover, kernel tuning, and automated health checks.
Sysadmin
Redis 8 Linux Memory Tuning: Huge Pages, AOF Persistence, and Threaded I/O
Master Redis 8 Linux memory tuning. Optimize Transparent Huge Pages, configure AOF persistence, and unleash multi-threaded I/O for ultra-low latency.
NGINX Unit Polyglot Architecture: Serving Python, PHP, and Node.js on a Single Port
Master NGINX Unit polyglot architecture to run Python, PHP, and Node.js on a single port. Eliminate reverse proxy latency with dynamic JSON runtime config.
Zero-Downtime MySQL 9 Physical Replication and Failover Architecture
Architect high-availability MySQL 9 environments with zero-downtime physical replication. Master GTID failover, ProxySQL routing, and kernel tuning.
PostgreSQL 17 High-Concurrency Tuning: Huge Pages, PgBouncer & Buffer Pool Optimization
Scale PostgreSQL 17 to tens of thousands of concurrent connections. Optimize Linux Huge Pages, PgBouncer pooling, and shared buffers for low latency.
WireGuard Mesh VPN Configuration for Multi-Region Linux Cloud VPS Clusters
Deploy a low-latency WireGuard mesh overlay across multi-region Linux VPS clusters. Achieve direct peer-to-peer routing and kernel-level throughput.
Hardening cPanel & WHM with ModSecurity, CSF Firewall, and ImunifyAV in 2026
Master cPanel & WHM defense-in-depth in 2026 using ModSecurity OWASP rules, CSF/LFD stateful firewalling, and ImunifyAV automated malware protection.
LiteSpeed Web Server (LSWS) Worker Process Tuning for 100K Concurrent Connections
Master LiteSpeed worker process tuning for 100K concurrent connections. Learn kernel sysctl parameters, epoll sizing, and high-throughput production configs.
Linux I/O Scheduler Tuning for High-Concurrency NVMe SSDs in 2026
Optimize Linux block layer I/O schedulers for high-concurrency NVMe SSDs. Learn when to choose none over mq-deadline to maximize IOPS and slash tail latency.
How to Set Up a Fresh Ubuntu 24.04 Cloud VPS from Scratch (Initial Config)
Complete beginner checklist to configure, update, user-harden, and firewall a brand new Ubuntu 24.04 LTS cloud VPS server in 2026.