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DC in the "Cloud"

Posted on 2012-12-20
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Last Modified: 2013-01-23
Hello;

My company is currently putting together a disaster recovery plan, and along with it comes the infrastructure.

We have created a DC on WIN2K8 R2, and it is hosted out in the cloud.  We are wondering the best way to configure this for a failover scenario.

One scenario in particular, as you may have already guess, is our Pri and Secondary DCs fail in house, and we want to failover to the one out in the cloud...

Or, here is another, more disastrous scenario:  Our building is destroyed, and we need to be able to work from home, or a new office, and authenticate to our DC that is in the cloud.  I am guessing we would want VPN for this...

That means we would need NPS...

I also read that running a DC and VPN server on same box is not a good idea, from a security standpoint...  is this true/accurate?  Why?
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Question by:cschmidt5
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Author Comment

by:cschmidt5
ID: 38710467
No takers?
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Expert Comment

by:shahzoor
ID: 38717038
your scenario is interesting but i would do it in a different way
i would pay for a reliable backup system and would upload image to the cloud.
So that i could download the last image created and deploy it to the machine

the other solution is Windows Azure Virtual Network
http://www.windowsazure.com/en-us/manage/services/networking/replica-domain-controller/

i think it would solve your problem
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Author Comment

by:cschmidt5
ID: 38740914
Well, we already have a DC hosted in the cloud, it is part of our "reliable" backup system.  If our building were to be destroyed our ultimate goal is to allow our users to VPN from home, and use the DC in the cloud for authentication.

I have been screwing around with a PPTP VPN server (Win2k8) but cannot for the life of me get my Cisco router to forward GRE port 47, even though the NAT rule is verified and configured right.  

Have any experience with this?
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Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

 
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Accepted Solution

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smckeown777 earned 500 total points
ID: 38740953
You mention NAT rules are setup ok - what about firewall? Need that port opened as well to allow the VPN to work...

How did you 'verify' that its configured right?
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Author Comment

by:cschmidt5
ID: 38811186
Hi guys, once I got rid of the Cisco router (was using PAT) everything worked.  The cisco device was not using any firewall or ACL rules, just NAT.  The environment I am in is a test environment, so I just put my VPN server one one VLAN and the client on the other and of course everything works.  Now that I have this working I can test the other things I need to before I do this for real.  The actual VPN server will be in the cloud, hosted by someone (not sure who, my boss knows)   the NAT will be really simple.  I am now looking into getting IPSEC instead of PPTP - this looks tricky.
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Author Closing Comment

by:cschmidt5
ID: 38811193
Your comment prompted me to just get rid of the old cisco router, as I suspected it was interfering with GRE to begin with  (  I just KNOW I had the ports forwarded right...)

I had also read elsewhere that too many switches and devices between the VPN server and client causes issues too, so that is another reason I ditched the cisco, on less "hop"
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