Trying to set up a sudoers file to allow a group to *su - svcuser* without a password. I've added a */etc/sudoers.d/user_group* file with *%ugroup ALL=NOPASSWD: /bin/su - svcusr* line. I cannot get it to work.... I've done a su back down from root as a user in user_group (so *# su - someuser* then *$ su - svcusr*) All attempts still prompt for password.