Month: October 2026
Secure SSH Access to a VPS Without Losing Your Login
Harden SSH on an Ubuntu or Debian VPS with key-based admin access, effective-config checks, firewall choices, and a safe apply, test, and rollback sequence.
TLS Certificates on Linux: Set Up Certbot and Verify Renewal
Choose an ACME method, install Certbot on Ubuntu/Nginx, verify the public HTTPS certificate, and test renewal, deployment, and expiry monitoring.
Isolate WordPress Sites on One Server with Separate PHP-FPM Pools
Separate WordPress PHP users, pools, sockets, files, and databases on one Ubuntu VPS. Includes staged migration, rollback, and two-way access tests.
How to Read Linux Server Logs When a Website Fails
Trace a failed website request through NGINX or Apache logs, journalctl, PHP-FPM and proxy evidence. Find the right source before changing your server.
Linux Crontab Guide: Syntax, Examples, and How to Check Jobs
Use crontab every 5, 10, or 15 minutes, check user and system syntax, and troubleshoot cron logs, exit codes, and task output.
How to Manage Linux Services with systemctl and Read Their Logs
Manage Linux services with systemctl: choose start, restart, enable, or reload, inspect unit-specific journal entries, and confirm application behavior.
How to Find Large Files and Check Disk Usage on Linux
Check the affected Linux filesystem, trace large directories and files, distinguish inode and Docker usage, and verify recovery without unsafe cleanup.
Linux VPS Backup and Restore Checklist
Inventory files, databases, and volumes, compare backup methods, and use a recovery acceptance record to check whether your Linux VPS can be restored.
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.
How to Install WordPress: Hosting Panel, Manual Setup, or WP-CLI
Learn how to install WordPress with a hosting panel, manual setup, or WP-CLI. Compare shared hosting and VPS requirements, then verify your new site.