A service that has been up for three days is at 1.2 GB RSS. Six hours later it is at 2.7 GB, then it plateaus, then it climbs again. Valgrind…
Read MoreRead-Ahead Versus TCP Slow-Start: Two CPMs That Punish Large Files
A server pulling 40 GB of large files for a CDN backfill behaves consistently for the first 90 seconds and then falls off a cliff. Throughput drops from 900 MB/s…
Read MoreMigrate WordPress to a Lean VPS Without Cutover Panic
TL;DR / Summary: Moving WordPress to a lean VPS is mostly rehearsal: inventory plugins, copy files and database, fix URLs, then cut DNS with a tested rollback. Use a clear…
Read MoreRead VPS Bandwidth Graphs Before You Upgrade Plans
TL;DR / Summary: Upgrading a VPS for “more speed” often wastes money when the real limiter is bandwidth shape, not CPU. Learn to read transfer graphs, separate spikes from trends,…
Read MoreCloudflare Tunnel as a Public IPv4 Replacement on a VPS: Costs, Limits, and Curve Balls
Public IPv4 addresses are the line item that quietly doubles the price of a small VPS. Some providers charge four to eight dollars per month for a dedicated address, which…
Read MoreRunning an MQTT Broker on a VPS: Mosquitto Capacity, Persistence, and Connection Limits
Mosquitto handles a surprising number of MQTT connections for a small process, but the limit that bites operators is rarely the broker itself. It is file descriptors, TLS handshake CPU,…
Read MoreFirst-Week Security Checklist After You Spin Up a New VPS
TL;DR / Summary: A fresh VPS is a blank machine on the public internet—bots will find it within minutes. Spend the first week on access hygiene, updates, firewalls, and backups…
Read MoreSnapshot vs Backup Schedules That Protect a Solo VPS Site
TL;DR / Summary: Snapshots and backups solve different failure stories. Solo VPS operators need both a quick rollback path and an off-box copy that survives panel disasters. Plan schedules before…
Read MoreTransparent Huge Pages on a VPS: When madvise Beats always and Neither Beats Off
Transparent Huge Pages were supposed to be free performance: fewer TLB entries, fewer page faults, less kernel time per byte of memory touched. On a dedicated host with 256 GB…
Read MoreReadahead Depth vs Direct I/O on a Mixed Web and File-Share VPS
A VPS serving a web application and a file share runs two storage workloads that want opposite page cache policies on one block device. The web tier wants readahead: sequential…
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