We want to manage DNS for toolforge.org via OpenStack Designate, so the authoritative nameservers should be set to cloud-ns{0,1}.wikimedia.org
$ whois wmflabs.org | grep "Name Server" Name Server: CLOUD-NS0.WIKIMEDIA.ORG Name Server: CLOUD-NS1.WIKIMEDIA.ORG $ whois toolforge.org | grep "Name Server" Name Server: NS0.WIKIMEDIA.ORG Name Server: NS1.WIKIMEDIA.ORG Name Server: NS2.WIKIMEDIA.ORG