Welcome to the sguard.ai blog

We run cPanel and WHM servers for hosting agencies. This blog is the notebook our on-call engineers wish they had when they joined the rotation: real symptoms, real commands, real exit codes.

What we publish

• Tier 1 incidents. Full postmortems of production failures: what alerted, what we ran, what fixed it, and what we changed afterwards so it would not happen again.
• Tier 2 patterns. The shapes that keep recurring across our fleet: wp-cron stacking, mysqld OOM kills, runaway imunify360-agent scans, brute-force noise from a handful of subnets.
• Tier 3 references. The short pages we link to from incident writeups so we do not re-explain the same Linux primitive every time.

What we do not publish

• Vendor takedowns. We use cPanel, MariaDB, Imunify360 every day. When they break, we describe the failure mode and the fix, not a campaign.
• Speculation. If a command was not run on a real server, it does not appear on this site.
• Fluff. No "in today's fast-paced digital landscape." The reader is a sysadmin Googling an error string. We open with the symptom.

How to read a post

Every postmortem follows the same structure: the alert that fired, the shell session that diagnosed it, the remediation that landed, and the use case change that closed the loop. Code blocks are real output. If they look ugly, that is because the terminal looked ugly that night.

If you spot a command that is wrong, or a claim that does not match what you see on your own servers, write to us. The audience for this blog has high bullshit detectors and we depend on that.