Index: src/main/java/com/xpn/xwiki/plugin/ldap/XWikiLDAPUtils.java
===================================================================
--- src/main/java/com/xpn/xwiki/plugin/ldap/XWikiLDAPUtils.java (revision 9836)
+++ src/main/java/com/xpn/xwiki/plugin/ldap/XWikiLDAPUtils.java (working copy)
@@ -93,6 +99,7 @@
     private String uidAttributeName = LDAP_DEFAULT_UID;

     static {
+        LDAP_GROUP_CLASS.add("posixGroup".toLowerCase());
         LDAP_GROUP_CLASS.add("group".toLowerCase());
         LDAP_GROUP_CLASS.add("groupOfNames".toLowerCase());
         LDAP_GROUP_CLASS.add("groupOfUniqueNames".toLowerCase());
@@ -100,6 +107,7 @@
         LDAP_GROUP_CLASS.add("dynamicGroupAux".toLowerCase());
         LDAP_GROUP_CLASS.add("groupWiseDistributionList".toLowerCase());

+        LDAP_GROUP_MEMBER.add("memberUid".toLowerCase());
         LDAP_GROUP_MEMBER.add("member".toLowerCase());
         LDAP_GROUP_MEMBER.add("uniqueMember".toLowerCase());
     }