[dns-operations] All NSs for a TLD being in the TLD itself

[Paul Hoffman]

The new records for one of the shiny new gTLDs are:

xn--ngbc5azd.		172800	IN	NS	a.nic.xn--ngbc5azd.
xn--ngbc5azd.		172800	IN	NS	b.nic.xn--ngbc5azd.
xn--ngbc5azd.		172800	IN	NS	c.nic.xn--ngbc5azd.
xn--ngbc5azd.		172800	IN	NS	d.nic.xn--ngbc5azd.
a.nic.xn--ngbc5azd.	172800	IN	A	37.209.192.3
a.nic.xn--ngbc5azd.	172800	IN	AAAA	2001:dcd:1:0:0:0:0:3
b.nic.xn--ngbc5azd.	172800	IN	A	37.209.194.3
b.nic.xn--ngbc5azd.	172800	IN	AAAA	2001:dcd:2:0:0:0:0:3
c.nic.xn--ngbc5azd.	172800	IN	A	37.209.196.3
c.nic.xn--ngbc5azd.	172800	IN	AAAA	2001:dcd:3:0:0:0:0:3
d.nic.xn--ngbc5azd.	172800	IN	A	37.209.198.3
d.nic.xn--ngbc5azd.	172800	IN	AAAA	2001:dcd:4:0:0:0:0:3

This works, of course, but it feels a bit fragile for me. Is there a history of this being unsafe? Of being more safe than NSs whose names are in other TLDs?

--Paul Hoffman