Windows (Prior To Vista)

  1. Click Start->Run, type cmd, then hit the Enter key
  2. In command prompt, type ipconfig /flushdns, then hit the Enter key

Windows (Vista and Later)

  1. Click the Start Orb
  2. Type cmd, then hit the Enter key
  3. In command prompt, type ipconfig /flushdns, then hit the Enter key

Mac OSX 10.4 Tiger

  1. Go to Applications Folder->Utilities->Terminal
  2. In terminal, type lookupd -flushcache, then hit the Enter key

Mac OSX 10.5 & 10.6

  1. Go to Applications Folder->Utilities->Terminal
  2. In terminal, type dscacheutil -flushcache, then hit the Enter key

Mac OSX 10.7 & 10.8

  1. Go to Applications Folder->Utilities->Terminal
  2. In terminal, type sudo killall -HUP mDNSResponder, then hit the Enter key
  3. You will need to enter your Administrative password, then hit the Enter key

Linux

  1. Issue the below command in your terminal:
    sudo /etc/rc.d/init.d/nscd restart
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