On 10/06/21 11:42 am, Alex Rousskov wrote:
On 6/9/21 6:16 PM, Ambrose Li wrote:
On Wed, Jun 09, 2021 at 12:05:40PM -0400, Alex Rousskov wrote:
Not that I know of. You can implement this logic inside a custom DNS
resolver script, or you can reconfigure Squid whenever your outgoing
addresses change, but I understand that you are looking for a better
solution.
What are the current recommendations for custom DNS resolver scripts?
I was talking about a custom script that implements a custom DNS
resolver. With modern libraries, it takes a few lines of code to write a
basic one. This kind of resolver does not resolve most of the names, but
forwards queries to another/real resolver, adapting the queries and/or
the answers as needed.
For an oversimplified example, such a script can respond to all AAAA
queries (with answers containing no records) while forwarding all A
queries to a "real" resolver.
Should be no need for any custom scripts or Squid config at all for this.
The Bind9 filter-aaaa* feature does it already without wasting network
bandwidth delivering ignored response fields. Other recursive resolvers
should all have equivalent features too.
Amos
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