Tech Blog

Learn how to schedule and manage cron jobs in DirectAdmin. Step-by-step setup, cron syntax, troubleshooting permission errors, and best practices for hosting admins.

Set up Varnish cache on DirectAdmin with Nginx as reverse proxy, fix cache-miss and purge issues, and cut page load times significantly.

Fix the Plesk SSL certificate name mismatch error step by step -- correct domain bindings, reissue certificates, and stop browser security warnings.

Fix cPanel BoxTrapper stuck emails: release queued messages, whitelist senders, and stop legitimate mail from being blocked.

This guide explains how to install and manage Supervisor on a server. It covers basic setup, starting and stopping processes, and managing background services in an easy and practical way.

Fix high TTFB on DirectAdmin servers with PHP-FPM process manager tuning and OPcache configuration. Step-by-step 2026 performance guide.

Fix the Plesk Let's Encrypt "too many failed authorizations recently" error. Diagnose DNS-01/HTTP-01 validation failures and stop the retry loop.

Fix the cPanel "Email Account Already Exists" error caused by stale passwd/shadow entries. Step-by-step 2026 troubleshooting guide.

Step-by-step guide to setting up DKIM, SPF, and DMARC in cPanel. Fix email deliverability issues and stop emails going to spam on your WHM server.

Optimize MySQL on your DirectAdmin server with InnoDB buffer pool tuning, slow query log analysis, index optimisation, and my.cnf best practices. 2026 guide.

DirectAdmin CustomBuild refusing to run with a PID lockfile error? Safely clear the stale lock and resume updates without corrupting your web stack.

Plesk mail stuck in queue with Amavis connection refused or timeout errors? Step-by-step fix to restore mail delivery fast.

Site still showing old content after a server migration? Fix DNS propagation delays, TTL caching, and cutover verification the right way.

cPanel WHM restore stuck on a suspended account API error? Fix the Restore Filtered Accounts bug and database prefix issue in minutes.

Learn how to enable HSTS in Plesk for Nginx and Apache — add Strict-Transport-Security headers, configure includeSubDomains and preload, and verify the header with curl and SSL Labs.

Complete Plesk email not sending troubleshooting guide: fix port 25 blocks, Amavis failures, deferred queue errors, transport unavailable, and Postfix configuration issues.

Fix slow WordPress and PHP sites on DirectAdmin by tuning PHP-FPM pool settings: pm.max_children, process manager mode, and OOM killer prevention.

Fix Plesk's 'SSL CA is not correct. Intermediate certificate missing' error and incomplete certificate chain warnings with step-by-step CA bundle upload instructions and openssl verification commands.

Fix the 'cPanel 421 Too many concurrent SMTP connections' Exim error with step-by-step log diagnosis, abuse detection, and safe WHM connection-limit tuning for 2026.

Fix email deliverability on WHM servers — step-by-step setup for SPF, DKIM, DMARC, and rDNS/PTR records with CLI commands and troubleshooting tips.

Fixing DirectAdmin server high load: diagnose MySQL bottlenecks, Apache worker exhaustion, brute force attacks, disk I/O issues, and malware with this step-by-step guide.

DirectAdmin task queue stuck or growing? Learn how to diagnose dataskq errors, clear a jammed task.queue file, and stop it from happening again.

Roundcube webmail on Plesk throwing "Connection to storage server failed"? Learn the exact Dovecot, port, and SSL causes behind this IMAP error and how to fix it for good.

A cPanel/WHM backup job stuck at 'In Progress' for hours usually means a frozen pkgacct process. Learn how to diagnose, safely kill, clean up, and prevent it from happening again.