Tag
Ubuntu 26.04 LTS cloud images now require a newer x86-64-v3 CPU baseline, and older or budget VPS hardware may not qualify. Here is the one command to check before you upgrade, and why a failed upgrade is worse on a remote server than a desktop.
Too many certificates already issued for exact set of domains means you hit Let's Encrypt's 5-per-week duplicate limit. Here is why shorter certificate lifetimes make this more likely, and the real fix, not the advice that makes it worse.
Let's Encrypt is shortening its certificate lifetimes, moving from 90 days down to 64 days by February 2027, with 45-day and even 6-day options already available. If your renewal script still assumes a 30-day buffer, here is why that assumption is starting to run out of room.
Ubuntu 26.04 LTS quietly made sudo-rs the default sudo. If your sudoers rules use a wildcard inside command arguments, they will silently stop matching. Here is what changed and how to fix it.
Enabling UFW without allowing SSH first is one of the most common ways people lock themselves out of a VPS. Here's the correct order, the gotcha if you've changed your SSH port, and how to recover if it's already happened.
Restic backups fail silently more often than loudly — a flaky network, an expired token, a full disk — and cron won't tell you. Here's how to wire a self-hosted Healthchecks dead man's switch into a restic backup script, and the single setup mistake that quietly defeats the whole point.
Your mysqldump command works when you type it yourself but fails from cron with "Access denied... using password: NO"? Here's the actual cause (it's not your password) and the right fix for an automated backup script.
A small VPS running out of RAM is one of the most common ways WordPress and Laravel sites go down. Here's how to size and set up a swap file properly, tune swappiness, and fix the MySQL setting that's usually the real cause.
Disable SSH password login and switch to key-only authentication on a VPS — including the cloud-init config override that silently breaks this on most guides.
