This is a very simple option to change the dns of the pi-hole to IE, google, quad 9 or whatever you prefer after setting the pi-hole up, in just a few clicks you can change the dns your pi-hole uses.
Step 1: Login to your pi-holes admin page as pictured below
Enter your password and tick remember me for 7 days then click Log in
Step 2: click Setting in the left options list
Step 3: Click the DNS tab, then select which dns you want to use in the ipv4 list tick both boxes then scroll down and click on save
DO NOT USE THE CUSTOM 1 (ipv4) we have setup in our screenshot as this requires additional setup ( another guide to [...]