ODBC connection from a Linux box to MS SQLServer

I need to connect to MS SQLServer from a Linux box using ODBC from a Qt application I am developing. So far I have installed the ODBC MS SQLServer driver and Kerberos on the Linux box. Using kinit I am able to get a ticket for my windows user (mvincent@mydomain.local). I am logged into the Linux box as a local user (mvincent@linuxbox). I am unsure how to get a ticket from windows active directory for my linux box login as mvincent@linuxbox is not in Active Directory. I am using Trusted_Connection=yes in my ODBC connection string. The MS SQLServer instance is configured to only use Windows authentication so I can't use Uid=xxx and Pwd=ssss in the connection string. How can I connect to MS SQLServer in the above scenario?