Tech Blog

Let's Encrypt SSL not auto-renewing in Plesk? Fix ACME challenge failures, renamed cert bugs, IPv6 DNS issues, and rate limits — step-by-step.

Step-by-step guide to configure SMTP relay in Plesk for SendGrid, Mailgun, and Amazon SES — server-wide and per-domain relay setup, DKIM signing, deliverability testing, and troubleshooting authentication errors.

Reduce backup storage costs by 50-75% using cPanel compression tuning, pigz parallelism, and exclusion rules. Step-by-step guide for sysadmins.

Learn how to set up Fail2Ban in Webmin to block brute force attacks. Covers Webmin jail configuration, the native Fail2Ban module, multi-service protection, and IP unblocking.

Learn how to install and manage multiple PHP versions in DirectAdmin with CustomBuild 2. Configure PHP 8.1, 8.2, 8.3 per domain using PHP-FPM for better performance.

DirectAdmin cron job not working? Fix PHP path errors, permission issues, environment problems, and silent failures with this complete troubleshooting guide.

Step-by-step guide to migrate a WooCommerce store to a new server without downtime — database export, file transfer, wp-config update, WP-CLI search-replace, DNS cutover, SSL setup, and post-migration fixes.

Fix slow websites on DirectAdmin: enable OPcache, tune Apache and MySQL, configure Redis caching, audit ModSecurity, and fix disk I/O to boost server performance.

Set up Webmin two-factor authentication with Google Authenticator and TOTP. Enforce 2FA for all users, configure backup codes, and combine with IP whitelisting for full security.

Step-by-step guide to configure cPanel/WHM offsite backup to Backblaze B2 cloud storage — bucket setup, application key, WHM destination config, restore steps, and cost comparison.

Enable and enforce 2FA in DirectAdmin for admin, reseller, and user accounts. Includes CSF firewall, brute force monitor, and ModSecurity hardening steps.

Set up ClamAV antivirus malware scanning on a Webmin server — install ClamAV, configure clamd, schedule automated nightly scans with email alerts, set up quarantine, and integrate with the Webmin module.

Fix high TTFB on DirectAdmin servers with step-by-step PHP-FPM tuning, OPcache configuration, Redis object caching, and MySQL optimization to cut page load times dramatically.

Step-by-step guide to enabling and tuning PHP OPcache in DirectAdmin via CustomBuild and PHP-FPM for faster load times and lower server load.

Protect Webmin and SSH from brute-force attacks with Fail2Ban, UFW firewall rules, IP allowlisting, and SSH hardening — a complete Webmin security setup guide for 2026.

Learn how to enable DirectAdmin 2FA step by step — including server-wide enforcement, IP whitelisting, backup codes, and lockout recovery for admins.

Fix Plesk SSL errors including NET::ERR_CERT_AUTHORITY_INVALID and Cloudflare Error 526 — step-by-step guide covering Let's Encrypt install, intermediate certs, and Cloudflare Origin Certificates.

Boost database speed on DirectAdmin with step-by-step MySQL/MariaDB tuning — my.cnf settings, InnoDB buffer pool, slow query log, and MySQLTuner walkthrough.

A practical 2026 guide to evaluating server migration providers for banks, fintechs, and insurers -- compliance, zero-downtime cutover, rollback SLAs, and pricing red flags to watch for.

Learn how to install and configure CSF (ConfigServer Security & Firewall) in Webmin step by step. Covers port rules, LFD setup, rate limiting, and troubleshooting for web hosting servers.

Step-by-step guide to configuring a smarthost/relay in WHM Exim for hosting sysadmins — improve deliverability, protect IP reputation, and route per domain.

Learn how to restore a cPanel/WHM full account backup using WHM interface, SSH command line, and partial restore methods — with error fixes and verification steps.

Complete guide to migrating cPanel accounts between servers using WHM Transfer Tool: pre-migration prep, SSH setup, transfer options, DNS cutover, and common error fixes.

A complete guide to DirectAdmin's three-tier account hierarchy — how to create reseller and user accounts, configure packages and resource limits, suspend accounts, and fix common errors.