Access to a SQL Server in some other Domain from SQL Server Management Studio

Senario in brief: My normal working domain is DomainA. But i have to connect to a sql server in DomainB. Administrators have given me remote desktop connection to the server which has sql server in DomainB but not to direct access from my SQL Server management studio.

Following is the solution.

runas /netonly /user:DomainB\sqladmin “C:\Program Files (x86)\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\IDE\Ssms.exe”

paste this infront of your command prompt and give the password for sqladmin user in SqlServer.
find the correct “Ssms.exe” path in your PC as “C:\Program Files (x86)\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\IDE\Ssms.exe” is in my PC.