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…
Read MoreMeasuring CPU Steal Time Accurately on a KVM VPS
Steal time is the one CPU metric on a VPS that describes something you cannot fix from inside the guest. It counts the cycles during which your vCPU was runnable…
Read More