Active Directory user cannot login via Gnome because no shell is specified in AD or SSSD
Issue
An Active Directory user tries to log in to a Graphical Session on a RHEL 6 system, the user's valid credentials are accepted for a second, but they are immediately presented with a login screen again.
Environment
Red Hat Enterprise Linux 6
gdm-2.30.4-64.el6.x86_64
sssd
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