SSSD: Cannot Load Configuration Database (FIX)
If you’re trying to configure SSSD and you get an error message in your syslog that kinda looks like this:
May 3 00:55:51 www1 sssd: Cannot load configuration database
… Then you just need to make sure your sssd.conf file has a newline at the end. Not even kidding.
echo >> /etc/sssd/sssd.conf
I had this particular issue on Ubuntu 12.04 Server. Might be specific to that distro, although I did find this sssd ticket that seems to indicate it was an upstream issue, but then again it was closed as invalid. So I dunno. The invalid resolution fixed the issue for me. YMMV.