We installed xConnect, Marketing Automation and Reference Data instances in a scaled Sitecore 9.0.1 environment. While accessing the URLs it is asking for the credentials cause the corresponding IIS instances are installed with windows authentication OOTB.
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SIF shoudln't be installing the instances with any special authentication.
Anonymous is what is required.
I wonder if the IIS defaults have been modified such that it creates a site with authentication?
