TCP Fast Open (TFO) is one of the simplest latency optimizations you can enable on a VPS. A single kernel parameter and an Nginx directive can eliminate one full round…
Read MoreUptime Kuma on a VPS: Production-Grade Deployment with Docker Compose, TLS, and Multi-Channel Alerts
Self-hosted monitoring is the most cost-effective way to keep an eye on your infrastructure. Uptime Kuma is a lightweight, open-source monitoring tool that runs on a single VPS with under…
Read MorePgBouncer on a VPS: Step-by-Step PostgreSQL Connection Pooling for 2–4 GB Servers
PostgreSQL creates one OS process per connection, and each idle connection can consume 5–10 MB of RAM. On a small VPS with 2–4 GB of memory, an application that opens…
Read MorePHP OPcache and Realpath Cache Tuning: Cut WordPress CPU Usage on Your VPS
Every PHP request compiles the requested script from source unless the compiled bytecode is already cached in memory. A typical WordPress installation with a dozen plugins contains 500–1000 PHP files,…
Read Moresystemd Service Hardening on a VPS: ProtectSystem, PrivateTmp, and Dropping Capabilities
Most VPS security guides stop at SSH keys and a firewall. The service layer is where attackers actually get in once they find a vulnerable process, and systemd gives you…
Read MoreTCP BBR on a VPS: Enabling Modern Congestion Control for Faster Transfers
If your VPS transfers large files slowly, or throughput collapses whenever the network drops a packet, the default TCP congestion control algorithm is a likely culprit. Most Linux distributions still…
Read MoreHow to Tune Linux Memory Swappiness for Better VPS Performance
vm.swappiness is a single kernel parameter that many VPS guides tell you to change — usually to 10 — without explaining what it actually does or why the default of…
Read MoreSSD vs NVMe Storage: Benchmarking and Tuning for VPS Workloads
Every VPS provider now advertises “SSD” or “NVMe” storage, but the real performance difference depends less on the interface standard and more on how the provider provisions, shares, and throttles…
Read More5 Linux Commands That Find and Free 40% of Your VPS Disk Space in 10 Minutes
A 20 GB VPS disk fills up faster than most people expect. One day df -h shows 100%, apt refuses to install updates, MySQL stops writing, and your site returns…
Read MoreVPS Scaling Runbook: Resize CPU, RAM, and Storage Without Downtime
Scaling a VPS used to mean opening a support ticket, waiting for a rebuild, and hoping your data survived the migration. Modern providers make vertical resizing nearly seamless, but “nearly”…
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