Slides from a presentation to the Innovative Interface Inc User Group (IUG 15) in San Jose, California, May 2007. Discusses the use of vulnerability scanning of Innovative Interface Inc. libraries to protect servers from security attacks. Describes use of Nessus software to run vulnerability scans of such servers. This software simulates attacks to find vulnerabilities before hackers find them, enabling preemptive fixes. The presentation outlines how to go about setting up the software, the kind of reports the software producees, and the vulnerabilities that are most frequently exposed. It also provides the 10 best practices for system administrators to implement.