How to Install FirewallD on AlmaLinux 10

To install FirewallD on AlmaLinux 10, follow the steps below to set up and configure your firewall properly.

Step 1 : Update Your System

Run the following command to ensure your system packages are up to date:

sudo dnf update -y

Step 2 : Install FirewallD (if not already installed)

If FirewallD is not installed, install it with:

sudo dnf install firewalld -y

Step 3 : Start FirewallD

Start the FirewallD service:

sudo systemctl start firewalld

Step 4 : Enable FirewallD on Boot

Ensure FirewallD automatically starts when the system boots:

sudo systemctl enable firewalld

Step 5 : Check FirewallD Status

Verify that FirewallD is running correctly:

sudo systemctl status firewalld

Step 6 : Basic FirewallD Configuration

Allow common web traffic such as HTTP (80) and HTTPS (443):

sudo firewall-cmd --permanent --add-service=http
sudo firewall-cmd --permanent --add-service=https

Reload FirewallD to apply the changes:

sudo firewall-cmd --reload

Congratulations! You have successfully installed and configured FirewallD on AlmaLinux 10, ensuring your server is protected and ready for secure operation.