Choose firewall with three interfaces for this guide. Standard template objects represent firewalls with two or three interfaces, a host with one interface, web server or Cisco router. This page of the wizard shows template objects and their configuration. You should reconfigure addresses of interfaces to match those used on your network and most likely will have to adjust rules to match your security policy. This configuration is intended as a starting point only. Note that template firewall object comes completely configured, including addresses and netmasks of its interfaces and some basic policy and NAT rules. Click “Next” to move on to the next page of the wizard. We are using one of the standard templates in this guide and therefore leave standard template library path and name in the “Template file:” input field. The latter is useful when administrator wants to distribute a library of predefined templates to other users in the enterprise. Template can be taken from the library of template objects that comes with Firewall Builder package or from a file provided by the user. To do this, check checkbox “Use pre configured template firewall objects”. This tutotiral demonstrates the first method (using template object). There are two ways new firewall can be created: you can use one of the preconfigured template firewall objects or create it from scratch. In the first page of the wizard you can enter the name for the new firewall object (here it is “guardian”), its platform ( “iptables”) and host OS (“Linux”). The program presents wizard-like dialog that will guide you through the process of creation of the new firewall object. Choose menu item “New Firewall” from the menu that appears. To do this, we’ll use object creation menu that appears when you click on the icon in the small toolbar right above the object tree. You can always open this dialog later using an item in the main menu “Help”. This works the same on all supported OS: Linux, Windows and Mac OS X. Clicking on the link in the dialog opens corresponding web page in your web browser. The dialog provides links to the project web site where you can find more tutorials, FAQ, Firewall Builder CookBoook and other documentation, as well as bug tracking system and links to user forums and mailing list. The program starts and opens main window and greeting dialog. If the system menu item is not there or you have built the program from source, you can always launch it from the command line by just typing “fwbuilder” on the shell prompt: Pre-built binary packages can be installed using our repositories of rpm and deb packages, see instructions on this page. deb packages offered on the project’s web site or build from source using our online installation instructions. If you want to try the latest version, you can use pre-built binary. Packages shipping with Ubuntu are always one or two minor revisions behind. On FreeBSD and OpenBSD Firewall Builder is part of ports, you can find it in /usr/ports/security/fwbuilder. # aptitude install libfwbuilder fwbuilder Use apt-get or aptitude to find and install them: You need to install package that has supporting API library libfwbuilder and package fwbuilder that contains Firewall Builder GUI and policy compilers. If it is not there, then it probably needs to be installed on your system. We will follow up with series of articles focusing on more advanced aspects of it in the coming weeks.įirewall Builder is packaged with most Linux distributions and is available under “System/Administration” menu. The first article is an introduction to the program. The program runs on Linux, FreeBSD, OpenBSD, Windows and Mac OS X and can manage both local and remote firewalls. Both professional network administrators and hobbyists managing firewalls with policies more complex that is allowed by simple web based UI can simplify management tasks with the application. Firewall Builder (also known as fwbuilder) is a GUI firewall configuration and management tool that supports iptables (netfilter), ipfilter, pf, ipfw, Cisco PIX (FWSM, ASA) and Cisco routers extended access lists. This guide starts a series of articles about Firewall Builder. If you would like to contribute an article, please see the About page for contact information. This article is part of a series regarding firewalling and network security using the Firewall Builder tool on Ubuntu.
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