i1888 (6/9/2015)
Hello, thanks very much for your article,I am wondering how do you get over crossing domain? as we have different domains and I would like to manage SQL Servers in one place.
Without trusts set up between your windows account and the other domains, I don't know that it is possible since SQL authentication is not possible. See this link for reference.
Item 3 on that page:
In the New Server Registration dialog box, select the instance of SQL Server that you want to become the central management server from the drop-down list of servers. You must use Windows Authentication for the central management server.