Use stronger ciphers and disable TLS 1.1

install/deb/vsftpd/vsftpd.conf

@@ -31,10 +31,10 @@ utf8_filesystem=YES
 ssl_enable=YES
 allow_anon_ssl=NO
 require_ssl_reuse=NO
-ssl_ciphers=HIGH
-ssl_tlsv1=NO
+ssl_ciphers=ssl_ciphers=ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256
 ssl_sslv2=NO
 ssl_sslv3=NO
+ssl_tlsv1=NO
 force_local_data_ssl=NO
 force_local_logins_ssl=NO
 rsa_cert_file=/usr/local/hestia/ssl/certificate.crt