Chapter 5. Setting up Multi-Master Replication
Replication is the mechanism by which directory data is automatically copied from one Directory Server to another. Updates of any kind, such as adding, modifying, or deleting entries, are automatically mirrored to other Directory Servers using replication.
IPA uses a number of scripts to install, configure, and manage replica servers and replication agreements. These are discussed in the following sections.
5.1. Preparing the Replica Servers
Replica servers require the same preparation as master IPA servers. That is, there should be no existing Directory Server installations, the ports required by IPA must be free and available, and the server's machine name must be set and resolve to its public IP address (not to localhost or 127.0.0.1). The replica server must also be able to contact the master LDAP server, which means that DNS or a similar look-up system must be working correctly.
