Storage I/O is the most common bottleneck for database workloads on a VPS. CPU and RAM are abundant on modern virtual servers, but the virtualized storage layer often introduces latency…
Read MoreContainerizing Applications on a VPS: Docker Compose for Production Use
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…
Read MoreUnattended-Upgrades Failure Modes on a VPS: Holding Kernels, Deferred Reboots, and the Dry-Run That Lies
Automatic patching is normally described as install-and-forget. The reality on a long-lived VPS is a set of specific failure modes: a held package that blocks every subsequent security update, a…
Read MoreNginx worker_processes and worker_connections: Sizing Them for a High-Concurrency VPS
The two lines that decide how much concurrency an Nginx instance can physically accept are worker_processes and worker_connections. Everything else in an Nginx config — caching, compression, buffers — only…
Read MoreMySQL and MariaDB Performance Tuning for Low-Memory VPS: A 1-2 GB RAM Configuration Walkthrough
Running MySQL or MariaDB on a 1-2 GB VPS is entirely practical, but the default configuration is written for a machine with far more RAM than you have. Left alone,…
Read Moretuned-adm on a VPS: Matching Kernel Profiles to Web, Database and Latency-Sensitive Workloads
Tiny 512 MB VPS: latency-performance plus vm.swappiness=10 and a small swap file — not zero swap. Never leave the daemon on balanced if you chose tuned for performance; that is the…
Read MoreTransparent Huge Pages on a VPS: Why They Cause Database Latency Spikes and How to Disable Them Safely
Transparent Huge Pages (THP) were designed to make Linux’s large-page optimizations automatic: the kernel’s khugepaged thread scans memory and promotes eligible 4 KB pages into 2 MB (or 1 GB)…
Read MoreTmux for Long-Running VPS Jobs: Sessions, Scripted Workflows and Surviving SSH Drops
A dropped SSH connection should never kill a database migration, a long rsync, or a kernel build. Tmux keeps your shells alive on the server independently of the network, and…
Read MoreKeeping VPS Logs Under Control: A Step-by-Step journald and logrotate Setup
Step-by-step guide to capping journald with size and time limits, writing a working logrotate policy, confirming the timer runs, and verifying with a log flood test.
Read MoreVPS Database Replication: Setting Up MySQL Master-Slave on a Single VPS
Database replication is often associated with multi-server architectures, but you can run a fully functional MySQL master-slave setup on a single VPS. Why would you do that? For backups without…
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