I am running the FTP daemon VSFTPD. I'd like to control FTP access by adding users to a group such that only members of the defined group can access the FTP services. I am thinking I can do this by modifying /etc/pam.d/vsftpd, but am not sure how to get started. Or is this only for virtual users in VSFTPD?
I am aware of user_list and this does not seem to support groups. This doesn't provide the function I am looking for which is described above. If I am mistaken though this would be great.