nginx domain access setup config

Good Day,

I am trying to use the domain module with nginx. I followed the direction on the domain module side even adding the * wildcard dns entry. (with linode)

I added the *.mydomain.com to the config file

server_name mydomain.com *.mydomain.com;

under this configuration my site is not accessible. From my understanding this is an accepted syntax.

but if I separate the *.mydomain.com adding another entry, site becomes accessible . Now when I add more details such location and other configuration the site becomes inaccessible.