Specifications
To congure a server to host a replica of an Open Directory master:
1 Make sure the master, the prospective replica, and every rewall between them is
congured to permit SSH communications (port 22).
You can enable SSH for Mac OS X Server in Server Admin. Select the server in the
Servers list, click Settings, click General, then select the Remote Login (SSH) option.
Make sure that SSH access is not restricted to certain users or groups (using SACLs) on
the prospective master.
This prevents Server Admin from having the necessary permissions during creation of
the replica. You can temporarily disable SACLs in Server Admin under Settings > Access.
For more information about SSH, see Getting Started.
For more information about permitting SSH communications through the Mac OS X
Server rewall, see Network Services Administration.
2 Open Server Admin and connect to the server.
3 Click the triangle at the left of the server.
The list of services appears.
4 From the expanded Servers list, select Open Directory.
5 Click Settings, then click General.
6 Click Change.
The Open Directory Assistant opens.
7 Choose “Set up an Open Directory Replica,” then click Continue.
8 Enter the following requested information:
 IP address or DNS name of Open Directory master: Enter the IP address or DNS name
of the server that is the Open Directory master.
 Root password on Open Directory master: Enter the password of the Open Directory
master system’s root user (user name system administrator).
 Domain administrator’s short name: Enter the name of an LDAP directory domain
administrator account.
 Domain administrator’s password: Enter the password of the administrator account
whose name you entered.
9 Click Continue.
10 Conrm the Open Directory conguration settings, then click Continue.
11 Click Close.
12 Make sure the date, time, and time zone are correct on the replica and the master.
The replica and the master should use the same network time service so their clocks
remain in sync.
88 Chapter 5 Setting Up Open Directory Services