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When WordPress emails stop sending after a migration, the cause is almost always something the move changed: the sending IP, DNS records, SMTP credentials, the PHP mail setup or outbound firewall rules. Check each layer in order (WordPress, transport,…
When a WordPress site is slow or down, work through five steps in order: confirm the scope of the problem, check server health, correlate the logs by timestamp, isolate the failing layer, then recover with the lowest-risk change. Skipping…
If a WordPress site returns a 403 that Nginx rules and security plugin logs can’t explain, and replaying the request returns 200, check PHP’s auto_prepend_file setting. A script set there, often through a .user.ini file, runs before WordPress loads…
If Nginx reports unknown directive "valid_referers", check the compiled HTTP referer module before changing the rule. When that module is unavailable, a carefully scoped $http_referer check can deter cross-site image and video embedding. Test the configuration and three request…
To check a WordPress database’s charset and collation, run wp db query "SELECT @@character_set_database, @@collation_database;" for the database default, then query information_schema.TABLES for each table, because tables can differ from the default. A modern site should use utf8mb4, with…
To block outbound traffic from an Ubuntu server to one IP address, insert a REJECT rule at the top of the OUTPUT chain: sudo iptables -I OUTPUT 1 -d 203.0.113.10 -j REJECT. The server can no longer open connections…
Hosting support is diagnosis at scale, and most of it follows patterns. Here's an architecture that pairs Gemini's reasoning with Ansible's safe execution to triage server issues faster, without ever letting the model touch a shell.
Set up WordPress locally on XAMPP with this step-by-step guide. Perfect for agencies, solo developers, and WooCommerce operators.