DNS contamination

Paul A Vixie writes:

> Ignoring additional records works pretty well for me.

This is harder than it looks. Sometimes the glue A RRs are the only ones
you can get -- you need them in order to ask questions in the domain they
are in, so without them you have infinite regress.

As I said, it works fine for me. When no A record for a nameserver is
available, named just issues a proper request for it to whatever server
might now about it. Here's the patch:

*** named/ns_resp.c.old Mon Nov 11 01:36:51 1996
--- named/ns_resp.c Thu Jan 23 19:01:30 1997