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Written from running the hardware — what breaks, why, and the command that fixes it.

5 posts matching “ttl” · Clear

All 5 Most read Domains 3 VPS 1 WordPress 1
Domains cPanel Zone Editor: Add, Edit, and Delete DNS Records

Learn how to add, edit, and delete DNS records in cPanel's Zone Editor, including record types, TTL tips, and why changes sometimes don't take effect.

30 July 2026 · 6 min · 12 views Domains MTA-STS & TLS-RPT Setup Guide: Stop Silent Mail Downgrades

Set up MTA-STS and TLS-RPT to stop STARTTLS downgrade attacks and get visibility into failed mail encryption - DNS records, policy file, and testing steps.

26 July 2026 · 6 min · 7 views VPS VPS Load Average High But CPU Idle? Diagnosing I/O Wait

Load average high but CPU sitting idle on your VPS? Learn how to confirm I/O wait with vmstat, find the blocked process, and fix the disk bottleneck.

19 July 2026 · 6 min · 12 views WordPress WordPress Heartbeat API Eating CPU? Here's How to Fix It

admin-ajax.php spiking your server's CPU every 15-60 seconds? Learn what the WordPress Heartbeat API does and how to safely throttle or disable it.

15 July 2026 · 5 min · 4 views Domains DNS Propagation Explained: How Long It Really Takes

Confused why your DNS change looks live on one device but not another? Learn how DNS propagation and TTL actually work, and how to speed it up safely.

13 July 2026 · 6 min · 10 views