So hello guys.
Welcome to this module where we will going to learn domain name server.
So following is the agenda of this module.
In lecture one we will going to study what exactly DNS is and why do we need it.
We will going to discuss the problem statement in detail.
We shall discuss the DNS architecture and design in detail.
Then we will discuss Fqdn that is fully qualified domain name.
And why do we use it?
In lecture four we will going to discuss the concept of first hop DNS server, which is also called
DNS resolver.
Right?
And then in lecture five, we will going to discuss how exactly DNS work.
We will going to discuss how DNS works step by step.
Now DNS works through two types of queries the recursive query and iterative query.
We will going to discuss the mechanism of both the type of DNS queries.
Then finally we shall discuss the concept of reverse DNS and we will end up this module with the summary.