Optimizing enterprise Nessus scans for speed
From Tenable's point of view, a "large" organization is someone with multiple Class B networks and more than 1 million items reported by Nessus. A basic concept to keep in mind when modifying how scans run is that there is a balance between scanning speed, thoroughness and invasiveness. For example, one may simply be able to decrease scan speed times by decreasing the number of tests performed. The scan happens faster but is not as thorough. This blog entry details some strategies that can help decrease scanning times with Nessus for very large networks.
At the Tenable blog.
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