stone-wlg opened a new issue #3734: There is no Service in skywalking URL: https://github.com/apache/skywalking/issues/3734 Please answer these questions before submitting your issue. - Why do you submit this issue? - [x] Question or discussion - [ ] Bug - [ ] Requirement - [ ] Feature or performance improvement ___ ### Question #### I have 2 Servers, A and B #### I setup app with skywalking agent using docker. Scenario 1: App on server A. Skywalking oap and ui on Server A. This is ok Scenario 2: App on server A, Skywalking oap and ui on Server B. This is failed Scenario 3: App on server A, Skywalking oap and ui using docker on Server A. This is failed Scenario 4: App on Server A, Skywalking oap and ui using docker on Server B. This is failed. Scenario 2 ~ 4 failed result as below:  there is no service. App skywalking agent config: SW_AGENT_NAME=test SW_AGENT_COLLECTOR_BACKEND_SERVICES=B:11800 export JAVA_OPTS="$JAVA_OPTS -javaagent:/skywalking-agent/skywalking-agent.jar" Skywalking docker compose file: https://github.com/apache/skywalking-docker/blob/master/6/6.4/compose/docker-compose.yml
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