Secure Your Linux VPS – CSF Firewall Installation & Setup

What the Freelancer needs to start the work

What I need from you to get started:

Root SSH access to your server (IP address, username, and password or private key)

Operating system details (e.g., Ubuntu, Debian, CentOS, AlmaLinux, etc.)

List of ports that should remain open (e.g., 22 for SSH, 80 for HTTP, 443 for HTTPS)

Preferred email address for receiving CSF security alerts

Any special security requirements you want applied