named/AAAA/resolver not failing correctly with CNAME

[Eric Hodel]

On 25 Apr 2005, at 14:09, Eric Hodel wrote:

> Starting last week, AAAA queries for domains are not "failing" 
> correctly when the domain being looked up is a CNAME for an A record.
>
> Instead of getting back a response indicating there is no AAAA record, 
> the resolver continues to look for a AAAA record until a timeout (a 
> minute or so), where it then switches to looking for an A record, 
> which is found immediately (as a CNAME).

Here it is even more simply, the first query should give something like 
the third.

$ host -t AAAA www.43things.com
$ host -t AAAA www.43things.com dns.sea1.speakeasy.net
Using domain server:
Name: dns.sea1.speakeasy.net
Address: 66.93.87.2#53
Aliases:

www.43things.com is an alias for 43things.com.
$ host -t A www.43things.com
www.43things.com is an alias for 43things.com.
43things.com has address 65.61.137.67
$ host -t A www.43things.com dns.sea1.speakeasy.net
Using domain server:
Name: dns.sea1.speakeasy.net
Address: 66.93.87.2#53
Aliases:

www.43things.com is an alias for 43things.com.
43things.com has address 65.61.137.67

-- 
Eric Hodel - drbrain at segment7.net - http://segment7.net
FEC2 57F1 D465 EB15 5D6E  7C11 332A 551C 796C 9F04