http://www.unixmen.com/enable-tlsssl-proftpd-ubuntufedoracentos/
# openssl req -new -x509 -days 365 -nodes -out proftpd.cert.pem -keyout proftpd.key.pem
Enable TLS/Ssl Proftpd Ubuntu/Fedora/Centos
http://www.unixmen.com/enable-tlsssl-proftpd-ubuntufedoracentos/
# openssl req -new -x509 -days 365 -nodes -out proftpd.cert.pem -keyout proftpd.key.pem