[dns-operations] Concerns regarding the ICANN/IANA DNS vulnerability checker

Matthew Pounsett matt.pounsett at cira.ca
Wed Aug 20 06:19:02 UTC 2008

On 20-Aug-2008, at 00:36 , Paul Vixie wrote:

>>>> 	The cache contents are, by default, not returned by later
>>>> 	version of BIND 9 except to directly connected clients.
>>> what does "directly connected" mean in this context?
>> 	Matches the built in acls localnets; or localhost;
> so if BIND9 has to go searching around for the A RR for some NS in  
> order
> to send a NOTIFY, and then later it has to answer with a referral that
> includes that NS, will it only include the A RR (that it fetched for  
> the
> NOTIFY) in the additional data section if the query source matches the
> built-in ACLs localnets or localhost?

This is perhaps getting a bit BIND-specific for dns-ops, but at what  
point did the behaviour change?  In the 9.3 branch, authority servers  
will hand out cached NOTIFY lookups to queriers outside of localnets. 
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