sssd.conf

[sssd]
config_file_version = 2
services = nss, pam, ssh, sudo
domains = example.com

[nss]
filter_users = root,named,avahi,haldaemon,dbus,radiusd,news,nscd,centos,ubuntu

[pam]

[ssh]

[sudo]

[domain/example.com]
id_provider = ad
access_provider = ad

ad_domain = example.com
krb5_realm = EXAMPLE.COM
realmd_tags = manages-system joined-with-samba 
cache_credentials = True
krb5_store_password_if_offline = True
default_shell = /bin/bash
ldap_id_mapping = True
fallback_homedir = /home/%u

ldap_user_ssh_public_key = sshPublicKey