[dns-operations] NS records pointing to names with CNAME records
cet1 at cam.ac.uk
Thu Jun 25 19:48:50 UTC 2009
On Jun 25 2009, George Barwood wrote:
>This means a "robust" name server should follow CNAME chains, and indeed
>this is very common, you cannot resolve www.google.com without lots of this.
Really? I see only a single CNAME www.google.com => www.l.google.com which
has (four) address records.
Not that I am arguing against the necessity to follow CNAME chains in general.
>Whether there are any current resolvers that don't follow CNAMES when
>resolving name server names to A/AAAA records seems to be an open question.
In a message to some of our college COs today, I referred to CNAME chains as
"(slightly) deprecated". It's time out of mind since anyone reported them
not working (if reasonably short).
Chris Thompson University of Cambridge Computing Service,
Email: cet1 at ucs.cam.ac.uk New Museums Site, Cambridge CB2 3QH,
Phone: +44 1223 334715 United Kingdom.
More information about the dns-operations