Question: How to configure AD group in sudoers file to provide sudo access to users?
Edit the /etc/sudoers file with visudo and enter the details in below format:
%[DOMAIN Name ]\\groupname ALL=(ALL) ALL
if you have spaces in group name, follow below entry.
%[DOMAIN Name ]\\Group\ Name\ With\ Spaces ALL=(ALL) ALL
after saving the data in the /etc/sudoers file, log out from the user session and login back in to verify.