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DNS Redirector is infinitely updateable use the free keyword files.

Dns Jumper can change your DNS settings, Dns jumper is Portable and Freeware

DNS Redirector - Internet Access Filter, Splash Page Manager.

DNS Flood Detector was developed to detect abusive usage levels on high traffic

Lookup DNS information using a convenient graphical user interface

OPC Simulator Server

High quality icons for design and software development. 118 icons,all formats

Block Web sites, domain names, and geographical locations using wildcard based rules.

Backs up your current DNS server address and then changes it to Google’s DNS.

Net::DNS is a pure-Ruby DNS library,