Previously, we looked at setting up an Open Directory Master in macOS. An Open Directory Replica keeps a copy of the Open Directory database available for users even when the Master goes offline. But it can also take a part of the load from the Open Directory Master and when using the new Locales feature, balance network traffic. To get started with an Open Directory Replica, first enable SSH, now disabled by default. If SSH is not enabled, you will not be able to create an Open Directory Replica. SSH is enabled on a server by opening the Server app, clicking on the name of the server and then clicking…