RMI Services

The Horizon Adapter exposes the RMI registry service, desktop and broker message servers, and certificate management server.

Table 1. RMI Services
Service	Description	Default Port
RMI registry service	The broker and desktop agents initially connect to the RMI registry service and request the address of a specific RMI server. Because the RMI registry service is used only for lookup and no sensitive data is transmitted to it, it does not use an encrypted channel.	3091
Desktop message server	The desktop agents connect to the desktop message server and use it to send desktop performance data to the Horizon Adapter. The desktop message server uses a TLS channel to encrypt the data that is sent from the desktop agents.	3099
Certificate management server	The broker agent connects to the certificate management server during the certificate pairing process. The certificate management server does not use an encrypted channel. Certificates are encrypted by using the server key during the certificate pairing process. For more information, see Certificate Pairing.	3100
Broker message server	The broker agents connect to the broker message server and use it to send Horizon inventory information to the Horizon Adapter. The broker message server uses a TLS channel to encrypt the data that is sent from the broker agent.	3101

The adapter and agents use ports 3091, 3099, 3100, and 3101 for communication. — Figure 1. Communication Through RMI Service Ports

Note: In vRealize Operations for Horizon 6.1 and earlier, the desktop message server, broker message server, and certificate management server use ports 3092, 3093, and 3094, respectively. Ports 3091 through 3101 are open by default in the vRealize Operations Manager firewall to maintain backward compatibility.