$config['auth_ldap_attr']['uid'] = "sAMAccountName";
 $config['auth_ldap_attr']['uidNumber'] = "objectSid";
 $config['auth_ldap_attr']['cn'] = "name";
 $config['auth_ldap_attr']['dn'] = "distinguishedname";
 $config['auth_ldap_objectclass'] = "person";
 $config['auth_ldap_version'] = 3;
 $config['auth_ldap_server'] = "dc1.foo.bar";
 $config['auth_ldap_port']   =  389;  
 $config['auth_ldap_starttls'] = "require";

 $config['auth_ldap_prefix'] = "cn=";
 $config['auth_ldap_suffix'] = ",OU=Accounts,DC=foo,DC=bar";
 $config['auth_ldap_group']  = array("cn=Observium_Users,ou=Service,ou=Misc,dc=foo,dc=bar");
 $config['auth_ldap_groupbase'] = "ou=Service,ou=Misc,dc=foo,dc=bar"; 
 $config['auth_ldap_groupmembertype'] = "fulldn";
 $config['auth_ldap_groupmemberattr'] = "member";
 unset($config['auth_ldap_groups']);

 $config['auth_ldap_groups']['cn=Observium_Admins,ou=Service,ou=Misc,dc=foo,dc=bar']['level'] = 10;
 $config['auth_ldap_groups']['cn=Observium_Global_Read,ou=Service,ou=Misc,dc=foo,dc=bar']['level'] = 7; 
 $config['auth_ldap_groups']['cn=Observium_Users,ou=Service,ou=Misc,dc=foo,dc=bar']['level'] = 1;