Tuesday, July 17, 2012

TMG 2010:Login To OWA Without Domain

Some company would simplified the process of lo gin to Outlook Web App (OWA), for instance redirect from HTTP to HTTPS, which is very convenient for users because  they don't need to remember to key in "S" when they want to access OWA.

Another example is they could log in without domain name (domain\username), especially when one company could have different internal & external domain name, they wouldn't want user to get confused about it so they decided to have only username as the log in name.

The steps above is easy to configure in Exchange CAS server, but if you have a TMG server in place, you will need to configure it in TMG server but not CAS server.

Navigate to C:\Program Files\Microsoft Forefront Threat Management Gateway\Templates\CookieAuthTemplates\Exchange , look for a file name "string" and open it. (Strongly recorded to backup the file before you start modifying it)

Inside the string file locate the _UserName_Text="Domain\user_name:"

remove domain\ and it should look like _UserName_Text="user_name:" 

Save it and reboot TMG server and you should be able to log in without inputting domain now.


Remember to perform the same step if you have an array of TMG servers.





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