When we are connected to the internet, our computer automatically caches the hostname of the websites you have visited to make reloading the pages faster. Sometime the computer has trouble reaching a certain web site because of a corrupt local DNS cache. Therefore we try to clear the DNS cache to have your computer request new information. Here are the instructions on how to clear local DNS cache for all Windows, Mac and Linux users:

Windows

  1. Open the command prompt

    Windows 8: Press the Windows key + X -> select “Command Prompt (Admin)"
    Windows 7/Vista: Click the Start -> type “cmd” into the Search field and press Enter on your keyboard.
    Windows XP: Click on the Start -> Run -> type “cmd” into the Run field and press Enter on your keyboard.

  2. Use the DNS flush command
    Type ipconfig /flushdns and press Enter.
  3. Exit the command prompt. Type exit and press Enter.

Mac

  1. Open the Terminal in the Utilities folder
  2. Use the DNS flush command

    Mac OS X 10.5 and newer: type dscacheutil -flushcache and press Enter to flush the DNS and then type sudo killall -HUP mDNSResponder and press Enter to reload the DNS.

    Mac OS X 10.4 and older: type lookupd -flushcache and press Enter to flush the DNS and then type sudo killall -HUP mDNSResponder and press Enter to reload the DNS.

  3. Enter the password.
    You will most likely be asked for the administrator password before you can proceed with the DNS flush.

Linux

  1. Open the terminal as root
  2. Use the DNS flush command
    Type /etc/init.d/nscd restart and press Enter to flush the DNS.

Note: Many current Linux distributions do not utilize a local DNS resolver cache like Windows and Mac OS X.