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<p>Your browser doesn't support frames Please upgrade your browser to take advantage of all features of <a href="http://www.firewall.com/" target="_top">www.firewall.com</a>. </p> <p>Click on the link to proceed to <a href="http://www.firewall.com/papers/nis_paper.ps.gz" target="_top">A Unix Network Protocol Security Study: NIS</a> - Hess, Safford, & Pooch; date unknown; GZip'd Postscipt; 20k ``Outlines NIS and its design faults regarding security.