We use openLDAP for central user/group authentication.

the base configuration of LDAP is as follows :

dn: dc=visielab,dc=be
objectClass: top
objectClass: dcObject
objectClass: organization
o: uantwerpen
dc: visielab
structuralObjectClass: organization

dn: cn=admin,dc=visielab,dc=be
objectClass: simpleSecurityObject
objectClass: organizationalRole
cn: admin
description: LDAP administrator
userPassword:: e1NTSEF9emdJcVpQUW1RUmYrNVRvZmp1K2o4SEZrWnk5NFovQjI=
structuralObjectClass: organizationalRole

dn: ou=People,dc=visielab,dc=be
objectClass: organizationalUnit
ou: People
structuralObjectClass: organizationalUnit
entryUUID: 2c2dcb08-ba3b-1037-8cb5-05243b87b858

dn: ou=Groups,dc=visielab,dc=be
objectClass: organizationalUnit
ou: Groups
structuralObjectClass: organizationalUnit

The password for the LDAP administrator is ••••••••••