How do I clear my local DNS cache?

trying to visit a website. In order the speed up this process and reduce the traffic on the DNS servers, most computer operating systems will store or cache DNS lookups on your computer locally. At times, you may need to clear the cache to see changes . In this tutorial, we'll show you how to clear the DNS cache for the major operating systems on the market. Typically, this process is referred to as clearing or flushing the local DNS cache.

Flushing Local DNS Cache in Windows

Open the command line window, and depending on your version of Windows, this can be done in one of the following ways:



Once the command line window is open type the following command at the prompt and hit enter

ipconfig /flushdns

After the flushdns is cpmpleted, type exit to close the command line window.

Flushing Local DNS Cache in Mac OS X

OS X 10.10

OS X 10.7 - 10.9

OS X 10.6 and below

Flushing Local DNS Cache in Linux

With the various distributions of Linux, you will find that by some run a daemon in the background to manage DNS cache, while others do not. Ubuntu is a good example of a distribution that doesn't run this daemon by default. If you're running Ubuntu and you have not already installed the ncsd daemon, you can install it with this command:

sudo aptitude install nscd

To restart the ncsd deamon in Linux, use this command:

sudo /etc/init.d/networking restart

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