TLSEngine on TLSRequired on TLSLog /var/log/proftpd/tls.log TLSDHParamFile /etc/proftpd/dhparams.pem # intermediate configuration from ssl-config.mozilla.org TLSProtocol TLSv1.2 TLSCipherSuite ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384 TLSServerCipherPreference off TLSSessionTickets off TLSOptions NoCertRequest AllowClientRenegotiations NoSessionReuseRequired TLSRSACertificateFile /etc/proftpd/ssl/proftpd.crt TLSRSACertificateKeyFile /etc/proftpd/ssl/proftpd.key TLSVerifyClient off RequireValidShell no