If you need to enable SSL in ProFTPD, try this out:
1 2 3 4 5 6 7
<IfModule mod_tls.c> TLSEngine on TLSRequired off TLSRSACertificateFile /etc/httpd/conf/ssl.crt/server.crt TLSRSACertificateKeyFile /etc/httpd/conf/ssl.key/server.key TLSVerifyClient off </IfModule>