Clearing or resetting DNS caches in your Mac operating system is a good idea as it speeds up the lookups within the same host. But sometimes we just want to clear the cache so it doesn’t hold the values that are no longer valid.

And it is pretty simple too. All you need to do is execute one or a couple of commands in Terminal and you are all set.

This tutorial does not really work for macOS Mojave but is perfect for the rest of the macOS versions

Step 1
Launch the Terminal app, either by going into Applications > Utilities > Terminal.app, or by typing Terminal in the Sportlight.

Note: Keyboard shortcut for Spotlight: Command + Space.



Read, The New Apple Mac Book Pro Full Spec, Features & Price In Nigeria

Step 2
Refer to the list below to find the command for your macOS version. Copy its respective command, paste it in Terminal and hit Enter. Should Terminal prompt asks for the password, enter your Mac’s password and hit Enter again.

Note: To find out which version of macOS you are using, simply click the Apple logo on the top left corner, select About This Mac, and click on the Overview tab.


"High Sierra" (Version 10.13)
sudo killall -HUP mDNSResponder; sleep 2

"Sierra" (Version 10.12)
sudo killall -HUP mDNSResponder

"El Capitan" (Version 10.11)


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