本文发表在 rolia.net 枫下论坛Following is what I did:

nslookup - ns1.granitecanyon.com
>set type=soa
>51.ca.
Server: ns1.granitecanyon.com
Address: 205.166.226.38

Authoritative answers can be found from:
ca nameserver = NS2.UUNET.ca
ca nameserver = NS3.UTORONTO.ca
ca nameserver = RS0.NETSOL.COM
ca nameserver = MERLE.CIRA.ca
ca nameserver = RELAY.CDNNET.ca
ca nameserver = CLOUSO.RISQ.QC.ca
NS2.UUNET.ca internet address = 142.77.1.5
NS3.UTORONTO.ca internet address = 128.100.100.131
RS0.NETSOL.COM internet address = 216.168.224.206
MERLE.CIRA.ca internet address = 64.26.149.98
RELAY.CDNNET.ca internet address = 192.73.5.1
CLOUSO.RISQ.QC.ca internet address = 192.26.210.1

===================
As you can see, there is no soa for 51.ca. at ns1.granitecanyon.com. So the record is not there yet.

If you are sure you've done everything right, bug them. Well that's not quite right since they provide free services. But you still can ask them kindly why the record is not there.更多精彩文章及讨论，请光临枫下论坛 rolia.net