Re: examples of DMZ infrastructure ?

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Hi Paul,

thank you for your advices.

I will really appreciate if you could advice me some nice websites etc... about those king of implementation.

I really want to learn more about designing a secure infrastructure based on a DMZ.

If you or others know good websites, white papers etc... about that, please let me know.

Have a nice day

There's no easy answer here. Implementing such a solution requires careful thought and planning, primarily focusing on the business requirements but also considering the existing infrastructure and the cost of implementing the different type of domains.

In the past, I've been involved in similar implementations where we've used multiple firewalls and reverse proxy. Whether or not you need to use ADAM is dependant on your application. As an example, one way of implementing the traditional two-tier web application with integrated authentication, could be to do the following:

A "DMZ" situated in between the external facing firewall and the internal facing firewall.
Your web servers and SQL servers sit in this zone, as part of a DMZ-only AD domain, which has a one-way outgoing trust to your internal domain (configured with selective authentication).
The internal firewall has rules that allow AD traffic to pass between the the DCs and SQL boxes in the "DMZ" to the internal AD DCs that you configure selctive auth with (and vice versa).

You need to do a lot of reading and design work on this, before you start out. You might want to consider getting the help of an experienced consultant to aid in your design.

--
Pascal


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