cert-api.access.redhat.com:443 api.access.redhat.com:443 infogw.api.openshift.com:443
If you use a firewall, you must configure it so that OpenShift Container Platform can access Red Hat Insights. This access is required for OpenShift Container Platform to access the Telemetry service, which is required to receive updates.
Before you install OpenShift Container Platform, you must configure your firewall to access Red Hat Insights.
Set your firewall to allow the following host names and ports on the outgoing network firewall:
cert-api.access.redhat.com:443 api.access.redhat.com:443 infogw.api.openshift.com:443