Practical Guides for Linux, Cloud, Web, CLI Tools, and Security

Shell Aliases and Functions: Work Faster in the Terminal

Set Up Outgoing Mail on a Webserver: Configure Postfix as an SMTP Relay

Backup Fundamentals: Key Principles for Secure and Resilient Data Protection

Default Settings Are Insecure: Harden Configurations Before Deployment

NGINX: Harden Security and Boost Performance

HTTPS: Secure Your Website and Protect User Data from Threats

NGINX: Configure a Cloudflare Domain and Enable HTTPS

DNS Records Guide: Types, Functions, and Best Practices

NGINX: Set Up and Deploy a Kirby CMS Website

Linux Webserver: Harden with Proven Techniques