Configure a Firewall using UFW (Ubuntu) and Firewalld (RHEL)
Learn how to configure a Linux firewall using UFW on Ubuntu and Firewalld on RHEL. Step-by-step CLI examples, best practices, and comparison tables included. Table of Contents 🔈Introduction Securing your Linux server is a critical step in system administration. One of the foundational layers of server security is the firewall — a system that controls […]