Guides from the NOC

DKIM showing fail or none despite a valid record? Learn how to find the real selector, fix truncated 2048-bit keys, and stop duplicate records after migration.

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.

Confused by DMARC XML reports piling up in your inbox? Learn what aggregate report fields mean, spot false failures, and safely move from p=none to p=reject.

Confused by your domain's SOA record? Learn what serial, refresh, retry, and expire actually control, and how to fix slow zone sync or DNS caching issues.

Getting an SPF permerror because your DNS record has too many nested lookups? Here's how to count, flatten, and fix it fast without breaking mail.

Site stuck on HTTP/1.1? Learn how to check, enable, and verify HTTP/2 on cPanel/EasyApache/Nginx and HTTP/3 (QUIC) via Cloudflare, step by step.

Hitting cPanel's max emails per hour limit? Learn why WHM caps outbound mail, how to check Track Delivery, and how to safely raise or fix the limit.

Set up ClamAV and rkhunter on an unmanaged VPS to catch malware and rootkits early, cut false positives, and automate scheduled scans with cron jobs.

Learn how WHM's Transfer Tool moves cPanel accounts between servers, why transfers stall or lose email, and how to cut over DNS safely.

Updated your site but still seeing the old version? Learn why Cloudflare caches stale HTML and how to purge it correctly, for good.

Moving to a new VPS? Learn how to migrate files, databases, mail, cron jobs, and DNS to a new server without downtime or lost email.

Move a live WooCommerce store to Getwebup without losing orders, overselling stock, or breaking payment gateway webhooks. Step-by-step guide.

Getting "Are you sure you want to do this?" in WordPress? Learn why nonce tokens expire, how caching causes it, and the exact steps to fix it for good.

WordPress XML import stuck or failing on attachments? Learn the PHP limits, WP-CLI fix, and file-splitting steps to get large WXR imports through.

WordPress blocking SVG, WebP, or other uploads with 'Sorry, this file type is not permitted for security reasons'? Here's the safe way to fix it.

Duplicator plugin stuck on Build, Extract, or Install after a WordPress migration? Learn the real causes - PHP limits, permissions, DB errors - and fixes.

Emoji or accented text showing as question marks in WordPress? Learn how to find and fix utf8 vs utf8mb4 charset and collation mismatches for good.

Want your own mail server instead of paying per mailbox? Step-by-step Postfix and Dovecot setup on a VPS, with the DNS records that make it actually deliver.

VPS throwing 'Too many open files' errors in Nginx, MySQL, or PHP-FPM? Learn how Linux file descriptor limits work and how to raise them safely.

cPanel File Manager stuck or failing to extract or compress ZIP files? Learn the real causes - PHP limits, disk quota, corrupted archives - and the fix.

Switching hosts and worried about losing years of email? Here's how to move old inbox messages into your new cPanel mailbox safely, with imapsync steps.

Need a subdomain managed by a different DNS provider? Learn how NS records delegate a subdomain, the cPanel Zone Editor steps, and the conflicts that break it.

Imunify360 flagged and quarantined a file on your cPanel hosting? Learn why it happens, how to check the scan report, restore safe files, and stop repeats.

Edited a PHP file but the site still shows the old version? Learn how PHP OPcache caches compiled code, why it goes stale, and how to clear it safely.