passwd:     files sss systemd
shadow:     files
group:      files sss systemd
hosts:      files myhostname resolve [!UNAVAIL=return] dns
services:   files usrfiles sss
netgroup:   files sss
automount:  files sss

aliases:    files
ethers:     files usrfiles
gshadow:    files
networks:   files usrfiles dns
protocols:  files usrfiles
publickey:  files
rpc:        files usrfiles