In EAP6-174 - Kerberos based authentication for Remoting enhancement there is incorrectly used sentence "The management security realm now caches LDAP data, which helps reduce the number of LDAP requests." - it is part of different enhancement (EAP6-191) and it has to be removed from EAP6-174 - Kerberos based authentication for Remoting. http://documentation-devel.engineering.redhat.com/site/documentation/en-US/JBoss_Enterprise_Application_Platform/6.4/html-single/6.4.0_Release_Notes/index.html#Enhancements Revision 6.4.0-2 Friday January 23 2015 Lucas Costi
Verified in Release Notes in Revision 6.4.0-3.