If you want to switch from your old DNS server, all you have to do is to change the IP address on the new server. Follow these steps to switch to a new DNS server - 1. Log in to your domain provider account (like Namecheap, GoDaddy, Hostinger, Bluehost) 2. Under the Menu option, click on Domains and select My Domains.  3. Now click on the Domain name for which you want to change the DNS. 4. From the Manage domain drop down list, select DNS Server Settings. 5. If you are using a third-party server, just select a Custom server from the list and enter the name server addresses.  6. Click on save. It can take up to 48 hours for your DNS to switch to the new one.