We're setting up an integrated authentication between the ECC 6.0 and the LDAP server, in our case the Microsoft Active Directory. We have some users that can't use WebGui because some features, that only run in the SapGui. We have already configured UME in the Sap Portal accessing directly the ADS server, and Sap Logon Ticket from Portal to ECC. Everything is ok to access the WebGui and SapGui by the Portal with the Sap Logon Ticket. However it demands that all users make the authentication previously in the Sap Portal. Is there another scenario only with SAP tools, for example using Sap Logon directly to the Active Directory. Obs.: Our entire sap servers are UNIX.