Servers

How to Check Linux Server Resource Usage (CPU, RAM, Disk, and Processes)

Check CPU, RAM, disk space, inodes, I/O and processes over SSH. Learn which readings need a second check and how to investigate past slowdowns.

Configure Nginx and PHP-FPM Safely

Connect Nginx to the right PHP-FPM listener, map script paths, test PHP output and a missing file, and trace 502, permission, and path errors.

Nginx, Apache, and PHP-FPM: How Web Stacks Fit Together

Understand Nginx, Apache, and PHP-FPM request paths, compare three layouts, check WordPress rewrite risks, and locate the right PHP troubleshooting step.

MySQL and MariaDB Administration: What to Check and Do

Identify your MySQL or MariaDB server and account, choose the right admin task, and check permissions, backup compatibility, and safe restores.

Docker and Containers on Linux: How They Work and What to Do Next

Understand Docker's host and container roles, choose a first test or Compose, and check ports, privileges, and persistent data before running services on Linux.

Linux Server Security: What to Check, Protect, and Verify

Secure a Linux web server by checking SSH access, exposed ports, HTTPS renewal, updates, and recovery. Learn which controls to verify and when to escalate.

Linux Server Operations: Logs, Cron, Monitoring, and Backups

Find the first useful check for failed Linux services, missed cron jobs, resource pressure, and backups. Follow the right guide and verify the result.