Muli-master OpenLDAP with 3 or more nodes

Going from a two-nodes multi-master configuration to one with more than two nodes is not really complex, once you have understood what we do in two nodes configuration :

  • In the two nodes configuration, each node has a different ServerID, in N nodes too. To let the local LDAP differentiate between the various masters, the configuration will now list a ServerID directive by node followed by the LDAP URI to connect this LDAP server.