WEB Application servers should be part of domain?

We are deploying Web application proxy server in AD FS environment. We will use this ADFS to configure Azure AD Connect for Exchange Hybrid Environment.

Question:   For above mentioned environment, Web Application server should be part of domain or can we keep it as stand alone server?

If it should be part of domain then what ports should we need to open to allow its access to DMZ domain controller servers ( active directory)?
Muhammad AsifSenior Solutions ArchitectAsked:
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James BunchSystems EngineerCommented:
Working as an MSP, it is typical to see the environment functionality seperated from line of business. This is done by having a Hypervisor running multiple VM's to accomplish this. Having your DC, AD, DNS, DHCP segregated from your FS and IIS type installations. If using a Microsoft environment you are allow two free license on the host and can do the above mentioned at no additional cost outside of the time it takes to set it up. This also allows for much easier Disaster and Recovery processes since your Line of Business Apps and Files are on a Virtual Hard drive and can be loaded to another hypervisor at will.
The typical hybrid requirement: Web application proxy is recommended to be placed in DMZ and it should be part of workgroup

You need to ensure that it is reachable form internet on TCP 443
Also from web application proxy you need to open TCP 443 outbound towards ADFS servers

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thomas yangIT System AdminCommented:
Mahesh, you are a legend. I couldn't believe your confirmation has solved my puzzle.  I am able to test the log in activities successfully to the domain via ADFS over the cloud now.  Sincerely appreciate your help!!!!!
Seth SimmonsSr. Systems AdministratorCommented:
No comment has been added to this question in more than 21 days, so it is now classified as abandoned.

I have recommended this question be closed as follows:

Accept: Mahesh (https:#a42434148)

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