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Michael Rash, Security Researcher



USENIX ;login: Article on Single Packet Authorization

Digg Hardening OpenSSH with Single Packet Authorization USENIX ;login: Article on Single Packet Authorization In the February, 2006 issue of USENIX ;login: Magazine, I had an article published entitled Single Packet Authorization with Fwknop. This article is available locally here, and provides a summary of the reasons why SPA is a more effective and mature technology than port knocking.