How to Configure DNS Server on CentOS 7 (Caching DNS with BIND)

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DNS (Domain Name System) Server is an essential part to any computer network. Today web communication cannot imagine without DNS Server. DNS is a client server protocol where DNS Client requests for the domain name resolution and DNS Server response on it. Every network should have a DNS Server because local DNS Server improves network performance by caching DNS information and serving DNS request locally. DNS Server can be configured either Windows or Linux operating system. In this video, I will show how to configure a caching DNS Server on CentOS 7/ RedHat 7 Linux with BIND9 Service.
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For CentOS 7 installation with GUI:

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