I am trying to configure sssd on my hosted engine.  Essentially we control host access in LDAP so I want sssd to read that thus allow my coworkers to login to hosted engine vm.

For some reason sssd reports backend offline even though it's resolvable, pingable, with ports open.  I see that it's a SELinux issue which I can resolve.  After changing to permissive SSSD works.

To have system read sssd database I set hosts line in /etc/nsswitch.conf to:

hosts files sss

Though it seems that I did something bad to /etc/nsswitch.conf as now yum, ping, etc does not work.

Could someone suggest how to restore this file or could anyone share theirs?