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

Tighten the controls on your Squid Web proxy.
Conclusion

Setting ACLs, running Squid with nonroot privileges most or all of the time and running Squid in a chroot jail constitute the bulk of Squid's built-in security features. But, these are not the only things you can do to use Squid to enhance your network and end-user systems' security.

Next time, I'll show you how to use add-on tools such as SquidGuard to increase Squid's intelligence in how it evaluates clients' requests and servers' replies. I'll also address (if not next time then in a subsequent column) some of the finer points of proxying TLS/SSL-encrypted sessions. 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”.

______________________

Free Dummies Books
Continuous Engineering

Learn:

  • What continuous engineering is
  • How to continuously improve complex product designs
  • How to anticipate and respond to markets and clients
  • How to get the most out of your engineering resources

Get your free book now

Sponsored by IBM

Free Dummies Books
Service Virtualization

Learn to:

  • Define service virtualization
  • Select the most beneficial services to virtualize
  • Improve your traditional approach to testing
  • Deliver higher-quality software faster

Get your free book now

Sponsored by IBM