How Cluster node initiate the command to OneAgent

[Starhut]

Hi, 

"Communication from OneAgent to Dynatrace is outbound only and Dynatrace never initiates communication with OneAgent. Because of this, when using Dynatrace, there is no need to open ports for inbound communication."

Based on statement above, connection should be (one agent -> Cluster port 443).

I am wondering how connection works for some actions such as Collect One Agent Diagnostic from the server without the inbound connection to one agent. (cluster -> one agent port 443).

Thanks.

[p_devulapalli · Accepted solution]

If I remember correctly , when you initiate a diagnostic command from the Dynatrace server, the command is added to a queue on the server. The OneAgent periodically polls the server for new commands while sending the monitoring data. During these polling intervals, the OneAgent checks for any queued commands awaiting execution and retrieves them. It then executes the diagnostic action locally on the host and sends the results back to the Dynatrace server during its next outbound communication.