Solved

How to set Exchange 2010/2013 to use the same URL in two physical locations

Posted on 2013-11-14
8
331 Views
Last Modified: 2013-11-23
My company is currently in the middle of updating our Exchange from 2003 to 2013.  Since there's no direct path, we're going through Exchange 2010 first.  Currently, we have servers at our head office, as well as 2 other remote locations, all using different URLs for OWA/Outlook.

Our plan is to consolidate the remote locations to an Exchange environment at our datacenter, and leave an Exchange server at our head office for those users (can't move them to the datacenter because we have crappy internet).

We'd like to stop using separate URLs for each server, and simply have one URL that users at both the datacenter and our head office can use, which will route them properly to the location that their mailbox is hosted. What would the ideal solution to accomplish this be?
0
Comment
Question by:vlsupport
  • 4
  • 2
  • 2
8 Comments
 
LVL 12

Expert Comment

by:piattnd
ID: 39648014
That depends a lot on your requirements.  If you need "intelligent" DNS routing, perhaps maybe all US accounts get pointed to ServerA where all Europe accounts get pointed to ServerB, unless ServerB is down, then you'll need a more robust solution.  This cannot be done with traditional DNS solutions, because they're not intelligent, meaning no checks are performed before it serves up a name.  

If you put in 2 names with the same preference, you cannot control which DNS entry will be fed back to requesters.  I had tried using "Zen Load Balancer" (http://www.zenloadbalancer.com/) previously, which is free, but the scripting language for the intelligence behind the scenes is not very well documented.  You might be able to pay for their assistance in setting it up.

You could also check OpenDNS to see if they offer some sort of solution like this for business customers (http://www.opendns.com/business-solutions/premium-dns/benefits/).

Alternatively, there are a ton of network load balancers out there that are not free, and are likely easier to setup, but they can get pretty expensive real fast.  An example of such product is the Global Load Balancing from F5 (http://www.f5.com/it-management/solutions/global-load-balancing/overview/).

It may seem overkill at first, but without an intelligent DNS solution, you could be sending your clients to a server that's down or a server that's not nearest them, impacting their experience (which you may or may not care about).
0
 
LVL 63

Expert Comment

by:Simon Butler (Sembee)
ID: 39648071
The poor internet connection would tend to rule out using proxying. What I would do is have a single URL for everything (which is announced to the users) but then use redirection to send them to the server which is closest to their mailbox.

For example, you advertise owa.example.com as the central URL to use, point Autodiscover to that server etc.
However each site has owa.xx.example.com (where xx is a variable for each site).
Exchange will sort out where the traffic goes and as you move users around the central URL continues to work correctly.

No need to use anything third party for this - it can all be done natively.

Simon.
0
 
LVL 12

Expert Comment

by:piattnd
ID: 39648147
Can you elaborate on that, Simon, because from my experience, that's incorrect.  What you're talking about is having a single entry point in the network, rather than keeping to the 2 entry points, as explained in the question.
0
 
LVL 12

Assisted Solution

by:piattnd
piattnd earned 250 total points
ID: 39648189
Ahh, nevermind I think I got it!  It's apparently a new feature of CAS in 2013 (http://blogs.technet.com/b/exchange/archive/2013/01/25/exchange-2013-client-access-server-role.aspx).
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 63

Assisted Solution

by:Simon Butler (Sembee)
Simon Butler (Sembee) earned 250 total points
ID: 39648379
I don't think it is new for Exchange 2013.
Basically you configure an external URL on servers in both sites. Users hit the server on site 1, Exchange says that the URL for site 2 is better for them so they are silently redirected. It was definitely possible in Exchange 2010.

Simon.
0
 
LVL 12

Expert Comment

by:piattnd
ID: 39648392
According to that link, the functionality was significantly changed in 2013, but I am familiar with the external/internal URL for OWA/EAS that you can configure in 2010.  I guess I never realized it was a true URL redirection rather than a proxy request (as previous exchange versions did).
0
 

Accepted Solution

by:
vlsupport earned 0 total points
ID: 39657540
Thanks all, we've run netflow for a while and discovered that Exchange isn't using as much bandwidth as we thought, so we're just going to run all of our Exchange servers at our datacenter.  Thanks for the info though.
0
 

Author Closing Comment

by:vlsupport
ID: 39671101
Original scope of the project changed based on new info.
0

Featured Post

Free book by J.Peter Bruzzese, Microsoft MVP

Are you using Office 365? Trying to set up email signatures but you’re struggling with transport rules and connectors? Let renowned Microsoft MVP J.Peter Bruzzese show you how in this exclusive e-book on Office 365 email signatures. Better yet, it’s free!

Question has a verified solution.

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

This process describes the steps required to Import and Export data from and to .pst files using Exchange 2010. We can use these steps to export data from a user to a .pst file, import data back to the same or a different user, or even import data t…
Large Outlook files lead to various unwanted errors and corruption issues. Furthermore, large outlook files can also make Outlook take longer to start-up, search, navigate, and shut-down. So, In this article, i will discuss a method to make your Out…
In this video we show how to create a Contact 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 Recipients >> Contact ta…
CodeTwo Sync for iCloud (http://www.codetwo.com/sync-for-icloud?sts=6554) automatically synchronizes your Outlook 2016, 2013, 2010 or 2007 folders with iCloud folders available via iCloud Control Panel. This lets you automatically sync them with…

911 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

20 Experts available now in Live!

Get 1:1 Help Now