The NSS interface provides an easy way for Winbind to hook into the operating system. All that needs to be done is to link the libnss_winbind.so using the following commands:

#sudo apt-get install libnss-winbind

Then add “winbind” into /etc/nsswitch.conf at the appropriate place.

# sudo nano /etc/nsswitch.conf 

The entries you need to make are:

passwd:         files winbind
group:          files winbind
hosts:          files dns wins