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Date:      Fri, 10 Feb 1995 14:24:29 EDT
From:      "M.C Wong" <mcw@hpato.aus.hp.com>
To:        nate@trout.sri.MT.net (Nate Williams)
Cc:        mcw@hpato.aus.hp.com, freebsd-questions@freefall.cdrom.com
Subject:   Re: DNS selection at user level
Message-ID:  <199502100325.AA058536751@hp.com>
In-Reply-To: <199502100304.UAA14305@trout.sri.MT.net>; from "Nate Williams" at Feb 9, 95 8:04 pm

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> 
> >   Just wonder if there is an environment variable/way for selecting 
> >   default DNS server at user level without having to update /etc/resolv.conf ?
> >   Preferably something that can manipulate a local workstation to 
> >   resolve host and domain names at run-time control, including order of
> >   the  DNS servers to be queried etc.
> 
> There would be too many ways to completely break security this way.  Say
> you have a machine that exports it's file-systems with root access to a
> specific machine.  All you need to do is provide a DNS server that you
> setup which responds that your machine is the trusted machine.

But isn't this spoofing can be guarded against with firewall thing, or it
can't for nfs ?

> 
> There are many other ways which could cause these sorts of problems.
> 
> 
> 
> Nate
> 
> 


--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 M.C Wong 				   Email: mcw@hpato.aus.hp.com 
 Australian Telecom Operation              Voice: +61 3 272 8058        
 Hewlett-Packard Australia Ltd             Fax:   +61 3 898 9257        
 31 Joseph St, Blackburn 3130, Australia   OS: FreeBSD-1.1.5.1
 http://hpautow.aus.hp.com:9999/~mcw/mcw.html (or http://hpautorf/~mcw)



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