Originally published at: http://www.howtogeek.com/180356/how-to-reset-the-dns-cache-on-mac-os-x/
It doesn’t happen very often for regular users, but sometimes a website or service needs to change their IP address and your computer’s local cached entry is incorrect. When you are a server administrator or programmer, this happens all the time.
To do the same thing on most versions of Windows:
Open a command line prompt (Win-R, type "cmd", press Enter)
Type the following command:
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