Improve company productivity with a Business Account.Sign Up

x
?
Solved

CAS and Frond end

Posted on 2011-09-24
6
Medium Priority
?
241 Views
Last Modified: 2012-05-12
If I understdan we need to DNS record on the public DNS for instance:
mycompany.com and legacy.mycompany.com
when a user types mycompany.com on the browser it will be forwarded to our firewall external interface then Natted to CAS role, and if CAS server finds that the client s mailbox is in exchange 2003 it will redirect the client back to the public DNS and point it to legacy.mycomapny.com and the client will take another trip back to our firewall external  interface.
Up to this point how does the Firewall/NAT know that this connection needs to go to exchange Front End?

thanks
0
Comment
Question by:jskfan
  • 3
  • 2
6 Comments
 
LVL 4

Accepted Solution

by:
maxsmith5k earned 1000 total points
ID: 36592155
legacy.mycompany.com will resolve to a different IP address than mail.mycompany.com.

This means that you need 2 public ip addresses.  One for the 2003 environment and one for the 2010 environment.
0
 

Author Comment

by:jskfan
ID: 36592365
I know we have been through this before, but since the thread was already too long , I didn't want to stretch it further.
OK, there will be 2 DNS recors at the public DNS , one for legacy.mycompany.com and one for mail.mycompany.com.
and you are saying there will be 2 public DNS servers , so:
**how are they configured on the DNS public to point to our firewall/NAT external interface
**how is our firewall/NAT configured to distinguish between the connection that will go to CAS and the connection that will go to FE?

Thanks


0
 
LVL 49

Expert Comment

by:Akhater
ID: 36592980
the firewall cannot differentiate that's why he told you you need 2 public IP addresses

mail.domain.com -> IP1 -> Natted to CAS 2010
Legacy.domain.com -> IP2 -> Natted to 2k3 front end



0
Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

 

Author Comment

by:jskfan
ID: 36594423
maybe I am not understanding that a firewall/NAT,even with one external physical interface, can receive multiple IP addresses and NAT them to multiple IP addresses.
example:
If you receive IP1 NAT it to CAS server IP address
if you receive IP2 NAT it to FE server IP address
0
 
LVL 49

Assisted Solution

by:Akhater
Akhater earned 1000 total points
ID: 36594432
Sure it can, it can have miltiple ips and you bind each to a different internal ip thru nat
0
 

Author Closing Comment

by:jskfan
ID: 36594469
thank you guys
0

Featured Post

Creating Active Directory Users from a Text File

If your organization has a need to mass-create AD user accounts, watch this video to see how its done without the need for scripting or other unnecessary complexities.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Are you working to mount the dismounted Exchange 2013 database? Then the best course of action is to analyze the causes of Database issue, their probable solutions and decide for the appropriate course of action.
Microsoft has decided to launch the Exchange Server 2019 this year for its on-premise users. What’s new now Microsoft is going to serve its users? How good is it going to be on the current Exchange Server 2016? This blog is going to answer all queri…
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the admini…
Watch the video to know the process of migration of Exchange or Office 365 mailboxes in absence of MS Outlook. It is an eminent tool which can easily migrate Public, Archive user mailboxes from one another Exchange server and Office 365. Kernel Migr…

585 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