[dns-operations] The possible problems after May 5th

Phil Regnauld regnauld at nsrc.org
Fri Apr 9 10:28:42 UTC 2010

Matthew Dempsky (matthew) writes:
> Yes, if www.foo.com was resolved as a CNAME pointing to
> foo.cdncorp.com, and foo.cdncorp.com failed to resolve using TCP, then
> I counted that as www.foo.com failing to resolve.

	From a business perspective, CEO of Corp X indeed doesn't give a rat's
	backside on why it won't work.

	But technically it'd be more interesting to note which RHS CNAMEs
	are failing to resolve over TCP.  What you then do with the data...

	Diligently contact the respective RNAMEs in the respective zones
	and tell them their DNS is borked (gee, will the RNAME work when
	TCP is disabled ?).  Or publish the original requested names AND
	the CNAME culprits on a blog, and title it "These companies will
	soon stop doing business together".


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