Can confluent control center web UI be remoted?

Question

1. I installed confluent-5.1.0 on my gcp instance using the following commands:

$ curl -O http://packages.confluent.io/archive/5.1/confluent-5.1.0-2.11.tar.gz

$ tar xzvf confluent-5.1.0-2.11.tar.gz

$ confluent-5.1.0/bin/confluent start

2. Add line to /confluent-5.1.0/etc/confluent-control-center/control-center.properties:

confluent.controlcenter.rest.listeners = http://<instance-external-ip>:9021

But can't connect to web UI by http://<instance-external-ip>:9021

Can some one help me? really appreciate!

Answer 1

Since you're accessing Confluent Control Center from another machine than the one on which it's hosted, you need to make sure that the firewall it open to allow traffic on the port (default 9021).