Can DC/OS run in Offline Mode

Question

Can DC/OS run on in an offline environment?

After a successfull installation in my offline environemnt the login web screen would not open with the following message:

The server refused the connection.

Answer 1

I had to disable authentication in my cluster because Im running it in a private offline network.
Just add the following line in genconf/config.yaml before custom installation:

oatuh_enabled: 'false'

this way authentication needed.

https://dcos.io/docs/1.7/administration/opt-out/