"Fortunately, there are a plethora of good tools, both
commercial and open source that can shine much-needed light into
your environment. Because good and free always beats good and
costly, I've compiled a list of my favorite open source tools that
prove their worth day in and day out in networks of any size. From
network and server monitoring to trending, graphing, and even
switch and router configuration backups, these utilities will see
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