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Copy %%PREFIX%%/etc/sssd/sssd.conf.sample to %%PREFIX%%/etc/sssd/sssd.conf
and edit %%PREFIX%%/etc/sssd/sssd.conf (see man sssd.conf for details)

To load sssd at startup, add sssd_enable="YES" to /etc/rc.conf

To enable pam integration, add a line similar to the following to
/etc/pam.d/system:

login   auth    sufficient      %%PREFIX%%/lib/pam_sss.so

To enable NSS integration, update /etc/nsswitch.conf as follows:

group: sss files
passwd: sss files

For additional details, please see the man pages for pam.conf and nsswitch.conf

An sssd HOWTO is also available:
https://fedorahosted.org/sssd/wiki/HOWTO_Configure_1_0_2
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