[en] The OpenTelemetry Collector uses port 4317 by default. Additional OpenTelemetry Protocol (OTLP) configurations can use port 4318.

[en] These ports are used only for local communication on the Management Server and should be blocked by the firewall to prevent external access.

[en] If you forward log data to an external monitoring or logging solution, ensure that outbound traffic is allowed to any ports required by that solution.