Now let's see another command and let's look up.
OK, that is name server lookup.
We use it to find out the information about domain name system of our target.
Right now, if I type and look up and hit enter, it's showing the default server.
OK, that is Delacey and his daughter Gonadotropin.
So Ticona is my Internet service provider.
OK, and this is the default IP address.
OK, now if you remember, we have got the same IP address on our previous experiment.
That is when we are tracing route.
OK, see this for the no IP address.
This is same as this one.
OK, so this is the name server for my computer.
OK, now let's try this on our target.
That is Facebook dot com.
OK.
Now, let's try this on another Web site.
See, this is the domain name and it is protected by CloudFlare.
OK, so we are getting the DNS information here.
Right.
Now, let's try to find out something that is canonically.
Now, you might be thinking, what is the name C. Suppose there are two domain names, Facebook dot
com and www.youtube.com pointing towards the same application.
So instead of maintaining two different records for DNS, what we can do is we can set a record for
Facebook dot com, which is pointing towards the server IP address.
OK, and we will say C name record for the blue dot Facebook dot com pointing towards Facebook dot com.
OK, so if user on any of these it will relate to the same Web site.
OK, so this is what a C name is.
Now let's see how to do this in practical.
So set by the ceiling and let's type our target.
OK, so again, a middle name for Facebook is STOD Mini and this.
Right, and this is the other information that is the default server of my Internet service provider,
so NSA, look up, help us to determine information about domain name system.
OK.