Solved

Exchange 2010 DMZ query

Posted on 2012-03-20
2
1,018 Views
Last Modified: 2012-03-21
Hi

I am planning to upgrade to Exchange 2010. I need some help understanding my options for configuring OWA and Active sync connections to come in securely from the Internet.

As I currently understand it, we can have a single server on the domain hosting the mailbox, hub and client access server roles.

If we want OWA and Activesync, we could publish port 443 out through the firewall, however to be secure, this should be done with a system in the DMZ. I'm reading about the Edge Transport Role, Threat Management Gateway and Forefront Protection - which of these do I need?

I currently have a good anti-spam and anti-virus appliance in my DMZ which doesn't need replacing. I want to route the mail through this device.

What is the best way to route OWA and Activesync connections leaving my existing anti-spam/AV appliance in place? I believe I need a reverse-proxy system so I'm not exposing my internal network to the internet directly. In this case, I think all I need is the Edge Transport Role...does this sound correct?
0
Comment
Question by:failed
2 Comments
 
LVL 5

Accepted Solution

by:
kollenh earned 400 total points
ID: 37743573
The Edge role is only for SMTP, not OWA or Activesync services.  Basically an Edge server does what your appliance already does so it sounds like you don't really need one.

Yes, you can publish 443 through the firewall and it will work; it's an accepted solution but probably not best practice, particularly when you're mailboxes are hosted on the same server.  The risk is slightly mitigated with split roles.

The other option is a proxy server such as ISA to be the intermediary so you're not exposing the Exchange server.

HTH
0
 
LVL 10

Assisted Solution

by:Michael Ian Claridge
Michael Ian Claridge earned 100 total points
ID: 37744004
Publish the OWA URL through TMG.
But note I am in agreement with the comments above, TMG is essentially x64 ISA.
0

Featured Post

Are your AD admin tools letting you down?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Utilizing an array to gracefully append to a list of EmailAddresses
Restoring deleted objects in Active Directory has been a standard feature in Active Directory for many years, yet some admins may not know what is available.
In this video we show how to create an Address List in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Organization >> Ad…
This video demonstrates how to sync Microsoft Exchange Public Folders with smartphones using CodeTwo Exchange Sync and Exchange ActiveSync. To learn more about CodeTwo Exchange Sync and download the free trial, go to: http://www.codetwo.com/excha…

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now