> We  were  running a DNS resolver at 66.90.70.50. This DNS server was
> not  authoritative  for  any  domains...  had  none  setup... just a
> resolver.

"Recursor".

"Resolver"  =  the  client  originating the DNS, e.g. GetHostByName(),
lookup.

> We  deleted  MS DNS from 66.90.70.50 so that machine does not answer
> any  DNS  queries.  I suppose all the requests are still hitting the
> box, but it doesn't seem to cause any problems.

This  whole  issue is quite silly.

[a]  the  edge router/firewall should have blocked these queries. What
business  it  has  letting  through  DNS traffic is beyond me, if this
service should not be exposed. Is there no firewall or something?

[b]  MS  DNS  is  quite reliable and resilient for recursion. (Yes, it
definitely  has access control issues that make public exposure touchy
under  many circumstances. I, too, use SimpleDNS for its more granular
access  control.)  If all you needed was a recursor on 127.0.0.1, just
have MS DNS listen only on loopback!

Jeez,  a whole separate product... I just don't understand how it came
to this.

--Sandy


------------------------------------
Sanford Whiteman, Chief Technologist
Broadleaf Systems, a division of
Cypress Integrated Systems, Inc.
e-mail: [EMAIL PROTECTED]

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