TLSEngine on TLSLog /var/log/proftpd/tls.log TLSProtocol TLSv1.2 TLSRSACertificateFile /etc/letsencrypt/live/federez.net/fullchain.pem TLSRSACertificateKeyFile /etc/letsencrypt/live/federez.net/privkey.pem TLSOptions NoCertRequest EnableDiags TLSVerifyClient off TLSRequired on