Before we talk about Firewall D, let’s talk about Firewall.
A firewall is a computer network security system that monitor and filters incoming and outgoing network traffic based on security policies or rules. The main purpose of a firewall is to deny dangerous traffic and only allow non-threatening traffic.
What is FirewallD ?
FirewallD is a zone-based firewall. FirewallD provides a dynamically managed firewall with support for networks or firewall zones that define the trust level of the interface or network connection. It supports both IPv4 and IPv6 settings.
FirewallD Related Basic Commands
Install FirewallD on Arch Linux or Arch Based Linux
sudo pacman -Sy firewalld --noconfirm
sudo systemctl start firewalld
Check FirewallD Status
sudo systemctl status firewalld
sudo systemctl enable firewalld
sudo systemctl stop firewalld