Control snap updates on Ubuntu Server
Snapd refreshes on its own schedule and ignores unattended-upgrades. Hold a snap, set a refresh window, read snap changes, and revert a bad revision.
#maintenance
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ZFS scrub schedule for a small VPS pool
A scrub reads every allocated block and verifies it. On a single device VPS pool it finds damage it cannot repair, so here is how often to run one.
A Linux server maintenance checklist
Weekly and monthly checks for a Linux server, plus the release upgrades, with the failure each one prevents and the restore test almost everyone skips.
Clean up old kernels on Ubuntu and free /boot
When /boot fills with old linux-image packages, apt stops configuring anything. Find the kernels you can remove safely, and keep the one you booted.
Docker prune: reclaim disk space on a VPS
Your VPS disk is full and Docker is holding it. Find which of images, containers, build cache or volumes has the space, then prune it without losing data.
Ubuntu LTS vs interim releases on a server
An interim Ubuntu release gives you nine months and a forced upgrade. An LTS gives you five years. Here is what each costs on a server you run.
When agent memory goes stale, and how to prune
Agent memories go wrong quietly. Put an expiry on time bound facts, cascade the deletes, review the rest, and read your SQLite store with sqlite3.
Upgrade Ubuntu 24.04 to 26.04 on a VPS
Ubuntu 24.04 does not offer 26.04 until the 26.04.1 point release lands. Here is the safe upgrade order, and the server services that break.