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…
Read MoreReducing VPS Latency: Measuring and Improving TTFB with CDN, Edge Caching, and Server Tuning
Latency directly impacts user experience and revenue. According to a 2023 Google study, a 100 ms increase in TTFB (Time to First Byte) reduces conversion rates by 7%. For a…
Read MoreFail2ban Tuning for SSH on a VPS: Jail Parameters, Metrics, and Lockout Safety
Most VPS operators install Fail2ban, enable the default SSH jail, and never look at it again. That default configuration bans an IP after five failed attempts for ten minutes —…
Read MoreVPS Network Optimization: Tuning sysctl for Low-Latency Web Applications
Network latency and throughput are critical for web applications, APIs, and real-time services. While many users focus on application-level optimizations, the Linux kernel’s network stack offers a rich set of…
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