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Flushing Your DNS in older Operating Systems


Flushing the DNS resolver cache helps fix DNS related problems in Microsoft Windows 10. Issues like website not found or viewing certain webpages that have since changed.

  1. Select the “Start” button, then type “cmd“.
  2. Right-click “Command Prompt“, then choose “Run as Administrator“.
  3. Type ipconfig /flushdns then press “Enter“. (be sure there is a space before the slash)


Select the “Start” button, then type “powershell“.
Select “Windows PowerShell“.
Type the following command, then press “Enter“:

This post also applies to Windows 10, 8, 7, XP, 2000, 2003 and 2008!


Note: Various distributions and versions of Linux have slightly different commands from the differences in configuration. One of the commands below should work.


  • Open up a root terminal window (Ctrl+T in Gnome).
    Type the following command and hit enter:
    /etc/init.d/nscd restart
  • You may need to use sudo depending on your installation instead:
    sudo /etc/init.d/nscd restart
  • Some distributions support this command:
    sudo /etc/init.d/dns-clean start
  • Or support this command:
    sudo service nscd restart
  • Some installations may have NSDS located in another directory, like the following example. You may need to locate where it is installed to be able to execute the correct command.
  • /etc/rc.d/init.d/nscd restart
    Restart your application (browser or email client).