The “support” tab in Sunstone check for subscription to the commercial OpenNebula support: http://docs.opennebula.org/5.4/deployment/sunstone_setup/sunstone.html#commercial-support-integration The “upgrade” tab check for new version in OpenNebula. * tmpl/admin.yaml (enabled_tabs): disable “support-tab” and “upgrade-top-tab”. * tmpl/admin_vcenter.yaml (enabled_tabs): ditoo. Ref: #22068