Our site is currently running under 4.5.3 and we want to migrate to version 4.9, for security reasons and for the opportunity to use the new AD authentication client. We currently have a mirror to the current production server working as a backup, which had originally functioned as our development server (intranet.test.edu). After we put the application onto the production server (intranet.edu) , we found that the mirror could no longer be accessed from its host name (intranet.test.edu). After the first Active Directory login challenge to (intranet.test.edu) the server immediately redirected to the production server (intranet.edu).

Is this a problem with the host header information in the dotnetnuke database? And if so, in which table can this information be found to modify it? I would rather NOT make alterations directly to the database, so if this is possibly a DNS or IIS issue, has anyone experienced anything like this before? Thanks!