Paranoid Penguin - Building a Secure Squid Web Proxy, Part I

Nurture your inner control freak with Squid.
Yet to Come in This Series

I've explained (at a high level) how Web proxies work, described some of their security benefits and shown how they might fit into one's perimeter network architecture. What, exactly, will we be doing in subsequent articles?

First, we'll obtain and install Squid and create a basic configuration file. Next, we'll “harden” Squid so that only our intended users can proxy connections through it.

Once all that is working, we'll add SquidGuard for blacklisting, and DansGuardian for content filtering. I'll at least give pointers on using other add-on tools for Squid administration, log analysis and other useful functions.

Next month, therefore, we'll roll up our sleeves and plunge right in to the guts of Squid configuration and administration. Until then, be safe!

Mick Bauer (darth.elmo@wiremonkeys.org) is Network Security Architect for one of the US's largest banks. He is the author of the O'Reilly book Linux Server Security, 2nd edition (formerly called Building Secure Servers With Linux), an occasional presenter at information security conferences and composer of the “Network Engineering Polka”.

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