How to Flush DNS Cache on Ubuntu 13.04, 12.10

This simple tutorial will show you how to flush or clear your system’s DNS records on Ubuntu 13.04 Raring and 12.10 Quantal.


  • Flush DNS records on Ubuntu 13.04 or Ubuntu 12.10
  • Enjoy!

To get started, press Ctrl+Alt+T to open a terminal window.

Then run command to flush dns:

sudo /etc/init.d/dns-clean restart

You can also use this command:

sudo /etc/init.d/networking force-reload

In addition, to flush nscd dns cache:

sudo /etc/init.d/nscd restart

To flush dnsmasq dns cache:

sudo /etc/init.d/dnsmasq restart