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Linux Firewalls by Michael Rash

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Kernel Configuration

Before you can begin compiling, you must construct a kernel configuration file. Fortunately, the process of building this file has been automated by kernel developers, and it can be initiated with a single command (within the /usr/src/linux-2.6.20.1 directory):

$ make menuconfig

The make menuconfig command launches the Ncurses interface in which you can select various compile options. (You can call the X Windows or terminal interface with the commands make xconfig and make config, respectively.) I've chosen the Ncurses interface because it provides a nice balance between the spartan terminal interface and the relatively expensive X Windows interface. The Ncurses interface also easily lends itself to the configuration of a ...

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