Change only one of my webapplications to Claims Based Auth in SP2013?

Question

In my Scenario i have got 5 webapplications and a lot of user i daily use. I have to change all webapplications to Claims based auth but first i wish to change only one af the Webapplications to Claims based auth, to check if it works with my ADFS server. Is it possible to do the change to only one af the webapplications, without disturbing all the users on the other webapplications?

Answer 1

Typically Claims is web application scoped, so there is no technical problem running only one webapp in claims mode.

However, I'd backup content database and keep solutions handy before testing in acceptance test with the following PowerShell script

Convert-SPWebApplication -Identity "http://WebAppURL" -To Claims -RetainPermissions [-Force]

More to read:

• Migrate from classic-mode to claims-based authentication in SharePoint 2013
• Convert-SPWebApplication