RE: Split DNS Questions...
- From: "Andrew English" <andrew@xxxxxxxxxxxxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Mon, 25 Apr 2005 10:47:29 -0400
Split DNS is simple for the most part so I don't know why people make is
so complicated by publishing screens and screens of text.
Basically you have your internal DNS which like you said works fine.
Then you have your external DNS which your ISP or domain name provider
manages/ or allows you to manage.
All you really have to do is match your internal with your external.
Example; exchange.server.com internally points to your exchange box,
while on the internet it points to the external IP of your ISA server so
that when you are at home or out on the road and were to ping
exchange.server.com from another source it would respond with your
companies external IP address (not the internal one).
Andrew
-----Original Message-----
From: Ball, Dan [mailto:DBall@xxxxxxxxxxx]
Sent: Monday, April 25, 2005 10:12 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Split DNS Questions...
http://www.ISAserver.org
I'm running into more and more problems with outgoing SMTP errors. They
seem to all tie back to using multiple ISPs on the ISA server. The
Internal DNS resolution seems to be working fine.
A lot of e-mail servers are now doing reverse DNS lookups before
accepting a message, so I need to have that name resolved correctly.
Hopefully a Split DNS will solve that for me.
Also, this morning I was notified of incoming mail being rejected also
with an "unrouteable address" error. While I think is most likely a
problem with the sender's SMTP server, I can't be 100% certain. If I
can get an authoritative DNS server in here that we can control, it will
allow us a lot more flexibility.
-----Original Message-----
From: Jim Harrison [mailto:Jim@xxxxxxxxxxxx]
Sent: Monday, April 25, 2005 09:52
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Split DNS Questions...
http://www.ISAserver.org
Hi Dan,
Split DNS isn't an ISA question.
The core issue is how you configure DNS internally.
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