Net Nanny 2
Net Nanny is one of the most popular content filtering systems. Net nanny is a powerful solution that categorizes in real time (so it doesn't rely on white/black lists), offers remote management, has a flexible alert/reporting tool, and can handle the usual suspects for parental controls/content filtering (time controls, profanity masking, IM management, and more). Net Nanny is one of the easiest tools in the category to use and although it is primarily targeted to home/parental-control use, it can be deployed in a business environment as well.
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Jack Wallen is an award-winning writer for TechRepublic and Linux.com. He’s an avid promoter of open source and the voice of The Android Expert. For more news about Jack Wallen, visit his website getjackd.net.