Defines the value for the user-agent request header in HTTP requests issued by the vRealize Hyperic agent.
You can use
http.useragent to define a user-agent value that is consistent across upgrades.
By default, the agent.properties file does not include this property.
By default, the user-agent in agent requests includes the vRealize Hyperic Agent version, and so changes when the agent is upgraded. If a target HTTP server is configured to block requests with an unknown user-agent, agent requests fail after an agent upgrade.
Hyperic-HQ-Agent/Version, for example,