Paranoid Penguin - DNS Cache Poisoning, Part II: DNSSEC Validation

Configure your DNS server to check zone signatures using DNSSEC.
Conclusion

And with that, your nameserver is successfully validating signed zone data! For now, I wish you thanks and goodbye. As I seem to do every couple years, I'm going to take a hiatus for a few months. I do plan on resuming the Paranoid Penguin after that, however, refreshed and renewed for your reading pleasure.

Until then, take care of yourself and especially your Linux systems!

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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