I think you answered your own question (well, almost). What you want are rights assignments. It's not done via attribute per se, but rather through permissions settings on the attributes. Often done via schema if global. What exactly do you need to accomplish? By default LDAP users can't browse the directory in the first place without authentication. There may be an easier way to do what you want, but we'll need more information about the expected end state. Al -----Original Message----- From: Dan HINCKLEY [mailto:danslists@xxxxxxxx] Sent: Friday, February 25, 2005 3:25 AM To: [ExchangeList] Subject: [exchangelist] securing AD parameters http://www.MSExchange.org/ Gentlemen, Is there a way to set the security on an AD parameter (extensionAttribute1 for example) so that only specific users or groups can query it via LDAP? I'm looking at keeping certain info in user objects secure from the general LDAP user but accessible to those with the right to query it. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Dan Hinckley t: (41 22) 999 0183 Information Management Group f: (41 22) 999 0010 IUCN, The World Conservation Union e: dah@xxxxxxxxxxx 1196 Gland, Switzerland w: http://iucn.org/ The Last Page of the Internet: http://www.1112.net/lastpage.html ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSEXchange.org Discussion List as: al.mulnick@xxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx