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ASA DNS Doctoring

Posted on 2012-03-26
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Last Modified: 2012-03-26
Hi All

Im having trouble getting DNS Doctoring to work on my ASA 5520. We have the usual setup detailed below

Server on DMZ - 172.16.111.10
Public IP address for NATing - 1.1.1.1
Inside network - 192.168.11.0/24

Here is the relevant config;

static (DMZ,OUTSIDE) 1.1.1.1 172.16.111.10 dns
static (INSIDE,DMZ) 192.168.11.0 192.168.11.0 netmask 255.255.255.0

access-l OUTSIDE_IN per tcp any host 1.1.1.1 eq www

Modular policy is in the default state and layer 7 inspection of DNS is in place

The users will be using external DNS to get to the web sites via the external IP address (1.1.1.1)

Any ideas please? We also have a few web developers that need access to the web server via it's private address (172.16.111.10)

Cheers
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Question by:Leedham2answers
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http://www.routsec.com/?p=80

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