In your circumstance, you could also have overridden it on the Windows 2008 
server’s DNS configuration, by adding a new authoritative (forward-resolver) 
domain with the *domain name* of xxxx.no-ip.org, not putting any hosts inside 
that domain, instead creating an “A” record for (IIRC) “this level” – the AD 
equivalent to an “@” record in BIND – and putting the IP address in there.  
(Yes, it sounds weird [unless you regularly eat DNS zonefiles for breakfast], 
but it works.)

Doing it that way removes the dependency on pfSense altogether.

 

-Adam Thompson

 <mailto:[email protected]> [email protected]

(204) 291-7950 - direct

(204) 489-6515 - fax

 

From: Marc R. Meshurle Jr. [mailto:[email protected]] 
Sent: Sunday, October 02, 2011 13:50
To: '[email protected]'; 'pfSense support and discussion'
Subject: RE: [pfSense] Loopback Connection

 

Worked like a charm. Since the Windows AD network with DNS is behind the PFS, I 
had to change the Windows 2008 DNS Server forwarders to point to the PFS, then 
it worked after the entries to the forwarders so dnsmasq could resolve.

 

Thanks again!

 

Marc

 

From: [email protected] [mailto:[email protected]] On 
Behalf Of Adam Thompson
Sent: Sunday, October 02, 2011 11:52
To: 'pfSense support and discussion'
Subject: Re: [pfSense] Loopback Connection

 

I have an identical setup at home, and AFAIK the best way to address it is to 
use DNS aliases.  It is possible to use NAT Reflection to make this work 
seamlessly without DNS aliases, but now you’re forcing all the internal mail 
traffic to go through the firewall and then to the mail server instead of 
directly to the mail server.

 

Luckily, setting up DNS aliases is trivial with the dnsmasq GUI built into 
pfSense.  I’m using 2.0 now, but I think it’s in the same place on 1.2.3: 
ServicesàDNS Forwarder.  All this does is short-circuit recursive DNS 
resolution when dnsmasq gets the query, it doesn’t affect anything on the 
outside.  The IP address you enter there is the internal IP of your mail 
server, not the public (NAT’d) IP.  As long as your wifi device uses your 
pfSense gateway for DNS resolution when you’re at home (which it probably does 
if you use DHCP) everything should just work.

 

-Adam Thompson

[email protected]

 

 

From: [email protected] [mailto:[email protected]] On 
Behalf Of Marc R. Meshurle Jr.
Sent: Sunday, October 02, 2011 05:30
To: '[email protected]'
Subject: [pfSense] Loopback Connection

 

I have a DDNS address and host a mail server behind the PFS 1.2.3 box. When 
inside on a Wi-Fi connection with a mobile device, it looks for the DDNS 
address for getting mail which is different than the internal DNS name for the 
mail server. Is there a way to create a loopback connection for the LAN client 
to see the DDNS address without making an internal DNS alias?

 

Internal mail server is servername.xxxx.local

External DDNS address is xxxx.no-ip.org

Mail is being sent from outside to the xxxx.no-ip.org for delivery

 

Thanks!

 

Marc R. Meshurle, Jr.

Owner/Senior Engineer

Kato Technology Solutions, Inc.

Exton, PA. 19341 

 

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