51 lines
2.4 KiB
HTML
51 lines
2.4 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9">
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<TITLE>Firewall and Proxy Server HOWTO: Software requirements</TITLE>
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<LINK HREF="Firewall-HOWTO-6.html" REL=next>
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<LINK HREF="Firewall-HOWTO-4.html" REL=previous>
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<A HREF="Firewall-HOWTO.html#toc5">Contents</A>
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<HR>
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<H2><A NAME="s5">5. Software requirements</A></H2>
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<P>
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<H2><A NAME="ss5.1">5.1 Selecting a Kernel</A>
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</H2>
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<P>
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To create a filtering firewall, you don't need any special software. Linux will do. At the time of this writing I'm using RedHat 6.1.
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<P>The bilt in Linux firewall have changed several times. If you are using an old Linux kernel (1.0.x or older) geta new copy. These older used ipfwadm from <B>http://www.xos.nl/linux/ipfwadm/</B> and is no longer supported.
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<P>If you are using 2.2.13 or newer you will be using ipchaining as developed by <B>
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<A HREF="http://www.adelaide.net.au/~rustcorp/ipfwchains/ipfwchains.html">http://www.adelaide.net.au/~rustcorp/ipfwchains/ipfwchains.html</A></B>
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<P>If you are using the newer 2.4 kernal there is a new firewall utility with more feachers. I will write about this soon.
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<P>
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<H2><A NAME="ss5.2">5.2 Selecting a proxy server</A>
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</H2>
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<P>If you want to setup a proxy server you will need one of these packages.
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<P>
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<OL>
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<LI> Squid</LI>
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<LI> The TIS Firewall Toolkit (FWTK)</LI>
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<LI> SOCKS</LI>
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</OL>
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<P>
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<P>Squid is a great package and works with Linux's Transparent Proxy feature. I will be describing how to setup this server.
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<P>AT the time of this writing,
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<A HREF="http://www.networkassociates.com/">Network Associates</A> and Trusted Information System's (TIS) , have merged. So keep watching their web sites for more information about changes. Mean while, the Tool Kit can still be had at. <B>
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<A HREF="http://www.tis.com/research/software/">http://www.tis.com/research/software/</A></B>
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<P>Trusted Information System put out a collection of programs designed to facilitate firewalling. With this toolkit, you set up one daemon for each service (WWW, telnet ect.) you will be using.
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<P>
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