running log on splunk heavy forwarder

I have a heavy forwarder onprem installed on a windows OS. I am troubleshooting why logs are not coming into the splunk cloud indexer from a cloud service over API. The api is between my onprem splunk heavy forwarder and the cloud service. I suspect the problem is on the cloud service side. I need a way to tell if the logs are even making it to my heavy forwarder. Is there a way to tail a running log on the heavy forwarder? Also I am referring to the onprem slunk server as a heavy forwarder. Is that the proper term? It sends data to the cloud indexer.