Our organization wants to use SSO for all of our applications using SPNEGO. We have ArcGIS Server & Web Adapter deployed to Tomcat. We're using ArcGIS Server 10.2.
We have HTML-based maps calling secured services via the ArcGIS JavaScript API & Dojo. However, currently this is prompting the user for a username/password the first time a secured web service is called. The page then gets a token and stores it in the IdentityManager. We want to skip this step. We want Tomcat/SPNEGO and to authenticate us, & have the Web Adapter pass our credentials along to the ArcGIS Server (where we assign LDAP Users to Roles and lock down the services with these roles).