Hi,

this is just a heads up that the AuthorizedKeysCommand functionality, which is necessary for the user keys part of OpenSSH integration in SSSD and was previously available in OpenSSH packages only in few Linux distros (Fedora, RHEL, Madriva), is now part of upstream OpenSSH as of version 6.2 (see http://www.openssh.com/txt/release-6.2). Once this version is adopted by other Linux distros (and other OSes), SSSD OpenSSH integration will fully work in them as well.

Honza