Once the FireStarter has been installed successfully, run the GUI interface of Linux by typing startx at the command prompt (if not already in graphical mode). As you browse through the Gnome Desktop interface, just click Applications from the main menu and select System Tools, and you will find the FireStarter executable program. FireStarter will initialize a setup wizard for Internet sharing.
It is assumed that your hardware includes two LAN (local area network) cards or NICs (network interface cards). One is for the direct connection to the Internet and the other is for the local private network.
Normally I specify the device for direct Internet connection as eth0 and for the private one as eth1. So by that convention, assign the following network cards as stated and complete it by clicking the Finish button. That’s all- that will make FireStarter work- without a series of configuration scripts and hard to understand procedures. As soon as the FireStarter is running, private network hosts will be able to access the Internet, and the now easily defined Linux firewall will be blocking malicious threats and vulnerable ports.
Please refer the image above, once the tool bar Stop Firewall is enable and the status is active, these indicate that Firestarter is running.
FireStarter can display the Internet protocols that are not allowed to pass through the private network by default. This makes it very easy to detect malicious activities and readily suppress it before it can harm the local area network.
Users can take advantage of the easy-to-use policies customization that FireStarter provides. Define several access lists for the private network hosts to use for daily computing operations.