<para>
The follow sets of a LDAP configuration which uses a slave server
- running on localhost for fetching SID/gid/uid mappings while
- sending update requests to the directory master server.
+ running on localhost for fast fetching SID/gid/uid mappings, it
+ implies correct configuration of referrals.
+ The idmap alloc backend is pointed directly to the master to skip
+ the referral (and consequent reconnection to the master) that the
+ slave would return as allocation requires writing on the master.
</para>
<programlisting>