For roughly two decades, Linux network servers have lived on epoll. It’s battle-tested, scales to hundreds of thousands of file descriptors, and every framework from nginx to Node.js is built…

You’ve seen it: a runaway process eats all available CPU on your VPS, the load average spikes to 40, SSH becomes unresponsive, and the only fix is a hard reboot…

How to size PHP-FPM pm.max_children, choose static vs dynamic vs ondemand, and set the request-recycling values that match your actual traffic shape.

Automate backup verification on a VPS: checksums, archive content assertions, weekly restore drills into an isolated instance, systemd timer scheduling, and failure alerting.

Almost every “my VPS feels slow” ticket ends with a dd test that says 1.2 GB/s and proves nothing. This is a job-file-first approach to disk benchmarking that produces numbers…

A security audit that ends with a PDF of findings is worthless if nobody patches anything. The useful audit is one where every finding maps to a command you can…

PHP-FPM is the most common execution model for PHP applications on VPS instances, but default configurations are tuned for dedicated servers with ample memory. This tutorial covers optimizing PHP-FPM for…

The Linux kernel’s default sysctl settings are designed for general-purpose workloads, not high-traffic web servers. Tuning these parameters can yield significant latency reductions and throughput improvements on VPS instances without…

A default node_exporter on a modern Linux host exposes well over a thousand series, and the collector set keeps growing. On a single VPS running Prometheus locally, the first real…

Running applications directly on a VPS works until you need to move them, replicate them, or update dependencies without breaking everything. Docker Compose gives you a single YAML file that…