Single Packet Authorization

Posted by Scott_Ruecker on Mar 4, 2007 5:11 AM EDT
Linux Journal; By Michael Rash
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Countless pieces of software, protocols and complex interdependencies together form a system for which it is difficult to guarantee any particular property-particularly security. Even software specifically designed to enhance security can, at the behest of clever individuals armed with detailed knowledge, work to its detriment. Vulnerabilities have been discovered in all sorts of security software from firewalls to implementations of the Secure Shell (SSH) Protocol. For example, OpenSSH is developed by some of the most security-conscious developers in the world, and yet it occasionally contains a remotely exploitable vulnerability.

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