Re: [PLUG] DNS question

[Rich Freeman <r-plug@thefreemanclan.net>]

On Fri, Mar 28, 2014 at 10:16 AM, Eric H. Johnson
<ejohnson@camalytics.com> wrote:
> Rich,
>
> The internal DNS server is Windows 2008 Server and does have a separate set
> of DNS entries. I did not see how to add an A record for just mydomain.com.
> I tried using '@' and a couple of things but they just generated error
> messages. Also, since it is also the AD server, everything except the
> external webserver (socket 80) should resolve to this server, not the
> external address.

DNS doesn't distinguish by port.  Your server has exactly one A record
unless you want to do round-robin.  You'll get the same IP for web,
SMB, LDAP, whatever.  The DNS server has no idea what service a client
is interested in when it is queried.

If you need different IPs for these different functions, then you'll
need different DNS addresses for them, or you'll need one central
server that redirects everybody to the right server.  The only
exception is services that are integrated into DNS, like email (you
don't need to redirect email, because mail servers first query for an
MX record which is mail-specific).

So, your first problem is figuring out how you want it to work.
Getting it to work that way is your next problem - though that will be
specific to your server.

Rich
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