How do I Flush DNS?
How to Flush DNS in Microsoft Windows
In Microsoft Windows, you can use the command ipconfig /flushdns to flush the DNS resolver cache:
C:\>ipconfig /flushdns

Windows IP Configuration

Successfully flushed the DNS Resolver Cache.
You can also use the command ipconfig /displaydns to view the DNS resolver cache
How to Flush DNS in Mac OSX
In Mac OSX [...]