Document URL: https://docs.openshift.com/container-platform/4.1/installing/install_config/configuring-firewall.html#configuring-firewall Section Number and Name: Configuring your firewall for OpenShift Container Platform Describe the issue: The URL list described in the docs (https://docs.openshift.com/container-platform/4.1/installing/install_config/configuring-firewall.html#configuring-firewall) and this article (https://access.redhat.com/solutions/2998411) is not complete. The OpenShift cluster is also tries to contact other URLs. For firewall rules and security a comprehensive list of URLs plus ports and protocols used is needed. Suggestions for improvement: Please list all of the URLs, ports and protocols required by OCP. Additional information: OpenShift has attempted to connect to the following: quay.io, api.openshift.com, cert-api.access.redhat.com, api.access.redhat.com, api.openshift.com, uo72mtx6v2cr.cloudfront.net, grafana.com, infogw.api.openshift.com, quay.io, registry.access.redhat.com, registry.redhat.io, stats.grafana.org
*** This bug has been marked as a duplicate of bug 1722775 ***