[Ext] Re: Redirect only second and third level domains

Edward Lewis edward.lewis at icann.org
Fri Feb 24 18:12:56 UTC 2017


On 2/24/17, 03:42, "bind-users on behalf of Andrea Gabellini" wrote:

>the server is a resolver for about 20K clients. My goal is to supply a
>courtesy page if a domain is not found. For every domain.
 
No approach relying on wildcards will work because of the way wildcards "work."  (*.example.com won't catch non-existing abc.def.example.com if cba.def.example.com exists.)

There are commercial applications that do this, the one I know of from a previous employer is http://www.barefruit.co.uk/.

I don't know of any open solutions to this goal.

(As you can tell from other replies, folks think this is a bad idea.  But if you are told to accomplish this by a manager, saying it's a bad idea isn't what the manager wants to hear.)

I can't think of an in-protocol or in-server solution.  Given that you should be mindful of the special use domain names too (.local or .onion as examples), this begs an out of band solution and probably manual management.

See http://www.iana.org/assignments/special-use-domain-names/special-use-domain-names.xhtml#special-use-domain for the special use domain names.

 

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