Guides from the NOC

Install and configure Varnish Cache on your VPS to serve pages in milliseconds. Step-by-step setup for Apache or Nginx backends, plus fixes for common issues.

Rebuild PHP and Apache with cPanel EasyApache 4 in WHM safely - avoid the missing extensions, PHP handler mismatches, and 500 errors a bad rebuild causes.

Learn how cPanel's Apache SpamAssassin spam filter works, tune the score threshold, and fix both too much junk mail and false positives.

Upgrade to PHP 8.5 in cPanel without breaking your site. See what's new, check PHP version support status, and follow a safe MultiPHP Manager rollout.

Getting a 408 Request Timeout during an upload or form submit? See why the client-side timeout trips in Nginx, Apache & Cloudflare, and how to fix it.

A corrupted .htaccess file can take your whole site down with no error message. Learn how to isolate it, fix common syntax mistakes, and rebuild it safely.

AutoSSL or Certbot can't validate your domain? Learn why .well-known/acme-challenge gets blocked and how to fix it on cPanel, Nginx, and Apache.

Seeing a 414 Request-URI Too Long error? Learn why redirect loops, plugins, or query strings blow past Nginx/Apache URL limits, and how to fix each cause.

SSL warning on www or duplicate URLs indexed twice? Learn to pick a canonical domain and set up a proper 301 redirect in cPanel, WordPress, Apache, and Nginx.

Step-by-step guide to installing Apache, MySQL/MariaDB, PHP and a free SSL cert on a bare Ubuntu VPS, plus the vhost and .htaccess errors people hit.

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.

A form or upload throwing 403 for no reason? Learn how to find the exact ModSecurity rule ID blocking it and whitelist it safely in cPanel or WHM.

Getting a 405 Method Not Allowed error on your site or API? Learn which layer - Apache, Nginx, Cloudflare, or WordPress - is blocking the request and fix it.

Seeing a 504 Gateway Timeout on your site or API? Learn which layer - Cloudflare, Nginx, Apache, or PHP-FPM - is stalling, and fix each cause step by step.

Learn how to redirect a domain or set up URL forwarding without breaking SEO, email, or SSL. Step-by-step 301 redirect guide for cPanel, Apache, and Nginx.

PageSpeed flagging 'enable text compression'? Learn to turn on GZIP and Brotli in cPanel, Apache, Nginx, and Cloudflare, and avoid the double-compression trap.

Getting ERR_SSL_PROTOCOL_ERROR in Chrome? Learn why the browser can't even start a TLS handshake and how to fix it on cPanel, Nginx, Apache, or Cloudflare.

Getting ERR_SSL_VERSION_OR_CIPHER_MISMATCH in Chrome? Learn why it's a TLS handshake failure, not a bad cert, and fix it on cPanel, Nginx, or Cloudflare.

Getting SSL_ERROR_RX_RECORD_TOO_LONG in Firefox? Learn why your browser thinks port 443 isn't serving SSL, and fix the Apache, Nginx or Cloudflare cause.

Getting a 413 Request Entity Too Large error on upload or import? Learn which layer - Nginx, Apache, or Cloudflare - is blocking it and how to fix each one.

Site showing 503 Service Unavailable? Learn what's really crashing behind the scenes - PHP-FPM, Apache limits, plugins - and fix it step by step.