Hi, I've read the white paper "Red Hat Identity Management and Security Solutions", and on page 13, it said that Red Hat Directory Server supports a variety of authentication standards and technologies, including: - ... - Kerberos tickets via SASL/GSSAPI - ... What does that exactly mean? Does that mean RHDS can issue kerberos ticket out of the box? Or does that mean I need to setup a kerberos server and use RHDS as the backend for user information? And this one: - Impersonation (proxy) for multi-tier client applications. Could someone explain what does it mean and how can it be used? Thanks a lot sz __________________________________ Yahoo! Music Unlimited Access over 1 million songs. Try it free. http://music.yahoo.com/unlimited/