Proftpd - pam env(proftpd:setcred): Unable to open config file: /etc/security/pam env.conf: No such file or directory

Ошибка в логах

proftpd: pam_env(proftpd:setcred): Unable to open config file: /etc/security/pam_env.conf: No such file or directory

Решение - сделать замены в файле /etc/pam.d/proftpd

# vi /etc/pam.d/proftpd
#%PAM-1.0
auth       required     pam_listfile.so item=user sense=deny file=/etc/ftpusers onerr=succeed
#auth       required    pam_stack.so service=system-auth
auth       required     pam_shells.so
#account    required    pam_stack.so service=system-auth
#session    required    pam_stack.so service=system-auth
auth include system-auth
account include system-auth
session include system-auth

заменить на

#%PAM-1.0
session optional pam_keyinit.so force revoke
auth required pam_listfile.so item=user sense=deny file=/etc/ftpusers onerr=succeed
auth required pam_shells.so
auth include system-auth
account include system-auth
# Comment the following line if you are having PAM issues with chrooted users
#session include system-auth
session required pam_loginuid.so

и перезапустить proftpd:

# systemctl restart proftpd