Dear all: Thanks Suzanne for this post. Some informational evidence below.
Suzanne Woolf wrote:
It would be nice for us, as DNS Operations experts, to be able to say something about uses and abuses of the DNS besides "this particular thing is broken because you could do this particular other thing instead".
While supporting my household LAN based on Linux boxes and visiting Laptops of indeterminate OSes (user base including a few teenagers and college students) in 2007, I encountered these DNS inefficiencies associated with useless AAAA queries from applications (notably a web browser).
I was surprised that the readily available fix was in the *application* configuration, and not in a glibc setting (/etc/nsswitch.conf) that would apply to every applications running on the box.
So the "particular thing" being broken could be shifted from the OS functions to the application developer. Inside the box, a filter for AAAA queries could be seen by some as a barrier to IPv6 migration (being application by application).
Just my very casual observation of the source of useless AAAA queries. Regards, -- - Thierry Moreau CONNOTECH Experts-conseils inc. 9130 Place de Montgolfier Montreal, QC, Canada H2M 2A1 Tel. +1-514-385-5691 _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
