Hi, we have similar implementation requirements for a fat client szenario. 1. The client part should get the TGT from cache 2. TGT should be send to JBoss 3. JBoss should get a Service Ticket from the AS Server with the aid of GSS-API 4. Service execution is secured the first i have get working with the Krb5LoginModule, the second i should get work, but currently id dont know how i could get the third to work. generelly i dont know whether its possible. Is there a example how i can obtain the service Ticket from the AS Server with the aid from GSS-API? @carstenKlein can you give an example how it works? it would be very helpfull View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4152132#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...