Nginx how to create a 3rd level domain?

Question

Nginx

Can you tell me how to create a 3rd level domain?
Now 127.0.0.1, but you need to get http://cdn.127.0.0.1/

Answer 1

It is better to write normal names in /etc/hosts
then add a line to the server section
and to the other
server_name cdn.server

Answer 2

What's the problem then?
...
server_name my.very.long.name.in.some,test.domain.com;;
...
anyhow this name was registered in dns, at least in a, at least in aaaa, at least cname, like mine, for example