SSRS CROSS Domain Reports Server Authentication I have a pretty complicated situation at hand, let me try to explain. 

I have a SQL Server and a Web Server in a separate domain (lets call it domain A). 

SQL Server has the databases for Reporting services, The web server has reporting services installed. 

The SSRS also have SSL certificates installed and we are using https protocol to connect to the reports manager. 

Now I need to give access to users from domain B to connect to the Reports Manager (report server on Domain A). 

The users from Domain B cannot have any logins in the Domain A where the reporting services are installed, I know to access the reports manager I need to add domain logins/groups to the reports manager and assign them appropriate roles to access the reports. 

What options do I have (if any) to give access to users from Domain B to connect to a Reports Manager on Domain A?

Important Note:

The access to reports server is via NLB with external facing IP, the reports server (web server) or the SQL server does not have any external facing IP
I don't recommend it but  

You have two options:


Connect using a domain username &amp; password from network A (everyone
in network B connecting as DOMAINA/userx)
Allowing anonymous access.  (this is inherently dangerous and you would want at a bare minimum to pass something to all of your reports as part of your process for security authentication and probably change the default structure for uploading http://local/reportserver might become http://local/rs)