Sun Java System Portal Server 7 uses JMX (Java Management Extensions) for management of all servers. Since Cacao is an implementation of the JMX API, it requires a Local Directory Server to run Portal Server 7.
The Cacao server stores metadata in an LDAP (Lightweight Directory Access Protocol) server and needs access to the LDAP server for starting. The gateway is deployed in the DMZ (Demilitarized Zone), and the firewall blocks LDAP access to the gateway host. As a workaround, install a local directory server in the DMZ on the gateway node. Note that the LDAP server does not include all the corporate data but only the bootstrap metadata for Cacao to start.
To install the gateway on a standalone node:
Install a local directory server.
Provide information about the local directory server or about the Portal Directory Server on the gateway screens.
Sun Java System 5 Portal server SRA 7.1 release does not require a Local Directory Server in the DMZ for Cacao to start.