I could fix my problem. I had to set settings in: Setup --> Authentication --> Others authentication methods
- Field storage of the login in the HTTP request from ---- to REMOTE_USER
- Remove the domain of logins like login@domain from No to Yes
I installed GLPI like explained here: https://forum.glpi-project.org/viewtopic.php?id=164452.
For SSO do I need to do something beside Kerberos for IIS? Sadly SSO works only "halfway". I get past the first authentication (PopUp for credentials), but then I have to authenticate manually (GLPI login page).
I use IIS 8 and newest version of GLPI
greetings
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