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Thanks!!!!<br />
<br />
I have read about it is not good idea...but i want to check another opinion.
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Thanks!!!!

I have read about it is not good idea...but i want to check another opinion.

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Don't. It is *barely* an opinion. It is practically settled science. More concrete than global warming. Just don't.
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Don't. It is *barely* an opinion. It is practically settled science. More concrete than global warming. Just don't.

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Running AD and Exchange on the same machine will not only cause technical issues, but it will be SLOW if you have a lot of users. It is better to separate them out for a variety of reasons like better performance from separating usage, faster reboots of the domain controller, etc.
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Running AD and Exchange on the same machine will not only cause technical issues, but it will be SLOW if you have a lot of users. It is better to separate them out for a variety of reasons like better performance from separating usage, faster reboots of the domain controller, etc.

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Very interested.<br />
It's really BAD idea installing Exchange on DC but is a very good Idea making Exchange as secondary DC.<br />
I had this before in 10+ clients and this is my primary work configuration for over 4 years.<br />
I've never get any issues with that configuration no matter what people are saying.
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Very interested.
It's really BAD idea installing Exchange on DC but is a very good Idea making Exchange as secondary DC.
I had this before in 10+ clients and this is my primary work configuration for over 4 years.
I've never get any issues with that configuration no matter what people are saying.

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People!!!!!<br />
<br />
I have a domain controller with Windows 2012 R2 and another machine with Windows 2012 R2. &nbsp;I was thinking installing exchange in DC..but not sure if it is a good idea. I prefer to leave the other machine if need it.<br />
<br />
What you think?
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People!!!!!

I have a domain controller with Windows 2012 R2 and another machine with Windows 2012 R2.  I was thinking installing exchange in DC..but not sure if it is a good idea. I prefer to leave the other machine if need it.

What you think?

Need to install new Exchange Server

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

This topic area includes legacy versions of Windows prior to Windows 2000: Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions including Windows Mobile.

Windows OS

Windows Server 2012 is the server version of Windows 8 and the successor to Windows Server 2008 R2. Windows Server 2012 is the first version of Windows Server to have no support for Itanium-based computers since Windows NT 4.0. Windows Server 2012, now in its second release (Windows Server 2012 Release 2) includes Foundation, Essentials, Standard and Datacenter, and does not support IA-32 or IA-64 processors.