I guess I'm just over-thinking it!  So what's the most
secure way of allowing my internal DNS to query the
ISP's DNS for internet address resolution?  The
internal DNS server is W2K.
--- [EMAIL PROTECTED] wrote:
> On 4 Dec 2001, at 10:39, Rick Brown wrote:
> 
> > This is a little off topic but I thought you guys
> would be the
> > one's to ask.  I only have a mail server and a web
> server (for
> > web-based email access) in my DMZ.  Do I have to
> have a DNS server
> > in the DMZ or can I just use my ISP's DNS?  I have
> an internal DNS
> > server(s).  What are the drawbacks to using my
> ISP's DNS.  I won't
> > need to make very many DNS changes in the future
> so I'm not
> > concerned with how long it takes to make a DNS
> update.  I know the
> > other way to go would be a split-DNS setup.  Any
> help/advice would
> > be greatly appreciated.  Thanks. 
> 
>   Who would use this DNS?
> 
> 1. Local internals -- they can use the internal DNS,
> which probably 
> lists internal private machines that you don't want
> publicly listed 
> anyway.
> 
> 2. The DMZ servers -- your web server, for instance,
> might need to 
> find an internal back-end database server.  If
> you're not comfortable 
> letting them use the internal DNS server, give them
> a hosts file that 
> just lists what they need.
> 
> 3. Outsiders trying to find your DMZ servers -- if
> your ISP will host 
> DNS for you, that's one less thing you need to
> manage locally.
> 
>   Seems like a no-brainer to me.  Is there some
> scenario I've 
> overlooked?
> 
> DG
> 
> 
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