This is your Tech Tidbits Daily for Tuesday Feb. 15th 2005. Today’s news is from Help Net Security and is in reference to the availability of a new version of very important computer network security tool.  This open source tool is called NMAP and the current version is 3.81.  It runs on a host of operating systems: Linux, Windows, Mac OS X, etc.  It is a "network mapper" that not only has value for network and system admin staffs, but also for conducting vulnerability assessments and penetration testing of a system of systems.  I personally recommend that all information technology (IT) pros take a look at this tool and make sure they can articulate its importance to their infrastructure.  If you can’t, then there is a good chance that your infrastructure may already be owned by "bad guys." For
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