Every PHP request on a typical WordPress or Laravel VPS spends 100–300 ms in PHP-FPM even when the rendered page barely changes. Nginx’s fastcgi_cache stores the finished HTML and serves…
Read Moresystemd Service Hardening: Sandboxing, Capabilities, and Resource Limits
A freshly installed service on Ubuntu 24.04 typically scores 8–9 on systemd-analyze security — marked EXPOSED — because the default unit grants full filesystem, network, and capability access. The same…
Read MoreZero-Downtime Deploys on a Single VPS: systemd, Blue-Green, and Rollback
A plain systemctl restart app drops every in-flight request, closes established connections, and leaves a visible gap in your error log. On a single VPS you cannot spin up a…
Read MoreSetting Up a Mail Server on a VPS: Postfix and Dovecot with SPF, DKIM, and DMARC
Sending mail from a VPS without authentication setup is a one-way ticket to the spam folder: receiving servers check your IP’s reverse DNS, your SPF record, and your DKIM signature…
Read MoreDocker Resource Limits and cgroup Tuning on a VPS: Keep One Container from Starving the Host
Containers on a VPS share the host kernel — and the host’s CPU, memory, and I/O. The classic failure mode: a single container with a memory leak or a runaway…
Read MoreLogrotate and Disk Space Management on a VPS: Keep Logs Useful Without Filling the Disk
A full disk is one of the most common causes of VPS outages — and it is almost always self-inflicted. Application logs, database binlogs, and package manager caches grow silently…
Read MoreApache Performance Tuning on a VPS: MPM, KeepAlive, and Caching Configs That Matter
Apache only becomes the bottleneck when it runs default configs. Switch to the event MPM, pair it with PHP-FPM, size workers to RAM, and add compression and caching — with benchmarks.
Read MoreCutting Web Latency on a VPS: TTFB, TLS 1.3, and HTTP/2 Tuning
Slow TTFB drives visitors away before they see your page. Measure it with curl, then apply TLS 1.3, OCSP stapling, session caching, HTTP/2, and keepalive tuning to shave 200–400 ms.
Read MoreHow to Benchmark Your VPS: CPU, Disk, and Network Testing Explained
A VPS spec sheet lists cores, RAM, and SSD size — but none of those numbers tell you how the server actually performs under your workload. Two $20 plans from…
Read Moresysctl Tuning for High-Performance VPS: Kernel Parameters That Matter
The Linux kernel ships with conservative defaults tuned for general-purpose desktops and servers with abundant resources. On a VPS — where RAM is measured in gigabytes, network buffers are shared,…
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