Do I need to perform App rationalization before DC Upgrade from 2016 to 2019?

Question

Hi everyone,

I have my DNS moved to Infoblox from my DC. Do I need to perform Application Rationalization before DC upgrade from 2016 to 2019?

Thanks.

Answer 1

Hi @Garima Das

If you want upgrade your domain controllers from Windows 2016 to Windows 2019 , you have check if the following prerequisites of domain controller under Windows 2019 are already configured :

1. Domain an forest Functional level is Windows 2008 R2 or higher
2. DFS-R is the replication system for sysvol folder
3. Check if all you application support communication with a domain controller under Windows 2019

If you choose to replace a domain controller Windows 2016 by new server with new IP , you should check the delegation on infobox to allow new IP to register automatically its DNS records.

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Answer 2

Hello Garima Das,

Thank you for posting in Q&A forum.

There are several drivers for application rationalization for organizations, mostly centered around reducing redundancies, paying down technical debt, and getting a handle on growing costs.

This is not necessarily required. However, you can perform App rationalization depending on the situation in your organization.

For more information, please read links below.

https://www.businesstechweekly.com/cybersecurity/application-security/application-rationalization-playbook-tools/

https://cloud.google.com/blog/products/application-development/application-rationalization-what-why-and-how

If you have any question or concern, please feel free to let us know.

Best Regards,
Daisy Zhou