Install on a private domain

Hello, I am trying to install your software locally, but when I put an internal dns, it gives me an error. first it doesn’t check the dns and second it won’t let me access the url. Is it possible to install with a private domain?

Hello, In order to get help on the community forum please provide more information about the format of your private domain, as well as the installation steps you followed, and the details of the error you are getting.