While so many preferences and tools are available on our computers these days, sometimes nothing beats a good old-fashioned command line tool. This is especially important for networking information, no matter what operating system you’re on. One of the most important systems on the Web is the Domain Name System, or DNS. This matches friendly website names to IP addresses, so when you go to google.com your browser knows which IP address to request. DNS usually works without a hitch, but since it’s cached, sometimes it can get stuck or point to an address that is outdated. When this happens, you...
Read the full article: How to Flush the DNS Cache in Mac OS X
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