Please excuse the interruption.
On Wed, May 29, 2002 at 05:18:06PM +0200, Alexander Gall wrote:
I'd still like to hear about hard facts / experiences why a CNAME in the middle of the path won't work (having seen that it does work for forward resolving - looks ugly, but people use it)
What are you referring to? Also, "forward" and "inverse" zones are not inherently different.
Exactly my point - I've seen weird things done in forward resolving that worked to my big surprise, so my idea might actually work (as there is no difference from the DNS point of view - in the resolver libraries, there might be one).
I may have misunderstood what you're proposing, but in general a CNAME in the middle of a chain of NS references will not have the effect you want - that's why DNAME was invented. If you alias a domain to another domain then looking up the NS or SOA records for the aliased domain will work but the resolution will not follow the NS records to find things further down the tree. Look for www.ucs.ed.ac.uk and www.ucs-cname.ed.ac.uk if you want examples. Been there, done that, got blasted by the DNS grandees when I complained it didn't work... Sam Wilson one of hostmaster@ed.ac.uk Network Services Division Computing Services, The University of Edinburgh Edinburgh, Scotland, UK