Oracle B32100-01 - Manual (Page 161)

Pre-Installation Steps for OracleAS Cluster (Identity Management)
Installing in High Availability Environments: OracleAS Cluster (Identity Management) 9-3
9.2.2 Synchronize Clocks on All Nodes
Synchronize the system clocks on all nodes so they are running within 250 seconds of
each other. When synchronizing the system clocks, make sure the clocks are set to the
same time zone.
Note: If you do not synchronize the clocks, then there will be inconsistent operation
attributes in the directory entries and inconsistent behavior of the password state
policies. As a result, you will see unwanted instance failovers.
9.2.3 Configure Virtual Server Names and Ports for the Load Balancer
Configure your load balancer with two virtual server names and associated ports:
■
Configure a virtual server name for LDAP connections. For this virtual server, you
need to configure a port for SSL connections.
■
Configure a virtual server name for HTTP connections. For this virtual server, you
also need to configure a port for either SSL or non-SSL connections. If you want
the client to connect to the load balancer using HTTPS, configure a port for SSL
connections. If you want the client to connect to the load balancer using HTTP,
configure a port for non-SSL connections.
The installer will prompt you for the virtual server names and port numbers. Enter the
same virtual server name in the installer that you used to configure the LDAP and
HTTP virtual servers. The virtual server name may or may not be fully-qualified. For
example, if you used a fully-qualified host name when you configured the LDAP
virtual server, then you must enter the same fully-qualified host name in the installer.
In addition, check the following:
■
Check that the virtual server names are associated with IP addresses and are part
of your DNS. The nodes that will be running Oracle Application Server must be
able to resolve these virtual server names.
9.2.4 Configure Your LDAP Virtual Server
Configure the LDAP virtual server on your load balancer to direct requests to node 1
initially. The procedure to add additional nodes differs depending upon whether or
not your load balancer supports LDAP service monitoring.
Note: It is recommended that the same port you configured for SSL
connections on the LDAP virtual server is configured as the SSL port
for Oracle Internet Directory on the nodes on which you will be
installing Oracle Internet Directory.
Note: The ports for the HTTP virtual server can be different from the
Oracle HTTP Server Listen ports.
Note: The installer does not check the load balancer. Make sure the
load balancer is properly configured and enabled before running the
installer.