You can configure Content Engine for directory server failover by using a failover list. A failover list is a list of one or more directory servers specified in preference order (with each server other than the first considered an alternate for the preceding server.) Content Engine attempts to connect to an alternate directory server when the connection attempt with a preferred directory server fails. If a previously established directory server connection fails, Content Engine renews its attempts to connect to a directory server beginning with the first directory server listed. The directory servers in a failover list must be either Microsoft® Active Directory domain controllers or Active Directory global catalogs.
Format a failover list to represent directory servers in the following manner:
Hostname1:Port1 Hostname2:Port2 Hostname3:Port3 ... HostnameN:PortN
Separate the host name and port number pairs with a space character. Each pair must consist of a host name and port number. In the following example, the first pair specifies LaurelTree as the machine name and 389 as the port number:
LaurelTree:389 OliveTree:636 FigTree:389
Given the example list, Content Engine first attempts to connect to the directory server on the LaurelTree machine on port 389. If that attempt fails, Content Engine attempts to connect to the directory server on the OliveTree machine on port 636. If that attempt succeeds, the connection attempts stop. If, later on, Content Engine loses the connection to the directory server on OliveTree, the connection attempts start over again with LaurelTree.
The following table shows the port numbers typically used:
Port | Directory Server Type | Connection Type | Property where used |
---|---|---|---|
389 | domain controller | non-secured | Host |
636 | domain controller | SSL | Host |
3268 | global catalog | non-secured | Global Catalog Host |
3269 | global catalog | SSL | Global Catalog Host |
To enter a failover list for an existing directory configuration