Domain Name Server (DNS) is an Internet service that translates domain names into IP addresses. They maintain a domain directory and convert it to an Internet Protocol (IP) address. This is necessary because the domain name is easy to remember, computer or machine, but access the site according to the IP address.
In fact, the DNS system is its own network. If a DNS server does not know how to translate a specific domain name, it will ask for another, wait until the correct IP address is returned.
HOW TO CONFIGURE DNS
Then press “Manage Domain”
Go to Management Tools —-> “Nameserver”
I already told about nameserver details get from your server. Then copy the Nameservers from your server details. they are: ns1.1freehosting.com, ns2.1freehosting.com, ns3.1freehosting.com, and ns4.1freehosting.com
Now your DNS configuration finished.