Figure 4: Your first firewall configuration is there, already!Īfter a few moments you are shown a graphical representation of the pre-set rules for this template. Please choose “host fw template 1” and go ahead. Figure 3: Starting with a wizardĪt this point you are presented a list of canned templates. To use the wizard, be sure to check the “Use preconfigured template firewall objects”. You are now asked for a name, a firewall application and an operating system: for the name, choose any one you like (“ifts” is the name I give to my firewall for historical reasons) for the other two, I am assuming you are using iptables on GNU/Linux. Figure 2: Selecting your firewall’s platform Right click on the folder and choose “New firewall” from the context menu. Look at the “Firewalls” folder at the top left: it’s empty and we are going to create a new one. Figure 1: Starting to create your personal firewall We are just playing around, so leave them unchecked and go ahead with “Finish”. You are then asked if you want to use a Revision Control System and if you want this project to be the default one. The program will come out with a welcome window that asks if you want to open an existing file or create a new project: choose to create a new one and give a filename, then click on “Next”. You can run Firewall Builder by finding it in a menu and clicking on its icon, by simply firing up a terminal window and typing fwbuilder. The latest release is the 2.1.10, which you can compile by yourself by downloading the source from SourceForge. I will assume that you already installed Firewall Builder on your system (using apt-get or Synaptic Package Manager, for example).įirewall Builder 2.0.9 is not the latest release available, but it’s the one that currently ships with distributions like Debian Testing and Ubuntu Edgy. I will create the basic configuration with a wizard and add some customisations afterwards.įirewall Builder is a graphical user interface (GUI) that allows you to configure a number of firewall engines in many different environments Therefore, I’ll focus on a specific case-configuring a "personal" firewall (that is, a firewall that protects just the one computer it is running on) on a DHCP-configured machine. Obviously, if I had to talk about internet security in general and about all possible uses of Firewall Builder on all the possible platforms, I’d be better off writing a book. As of version 2.0.9 it supports these firewall softwares: The secret? Firewall Builder (also known as fwbuilder for short).įirewall Builder is a graphical user interface (GUI) that allows you to configure a number of firewall engines in many different environments. Have you ever wanted to configure a personal firewall for your GNU/Linux box, but were scared of the complexity of iptables? Well, I might not be able to make you a security expert, but I can show you a tool that will help you to configure your personal firewall the easy way.
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