[Unit]
Description=Samba Winbind daemon
After=network.target nmbd.service

[Service]
Type=forking
PIDFile=/var/run/samba/winbindd.pid
ExecStart=/usr/sbin/winbindd -D 
ExecReload=/bin/kill -HUP $MAINPID

[Install]
WantedBy=multi-user.target