how to config tha proftpd with TLS

[不坏阿峰]

how to config tha proftpd with TLS

i Uncomment  the line in proftpd.conf  :
TLSEngine             on
,
is that proftpd can work in TLS way which open the TLSEngine only? or must config the TLS .

following conf is the Linux（may be Redhat）
#########################ssl/tls############################
# MOD_TLS SETTING
<IfModule mod_tls.c>
TLSEngine on
TLSLog /var/log/proftpd-tls.log
TLSProtocol SSLv23
# Are clients required to use FTP over TLS when talking to this server?
TLSRequired ctrl
# Server's certificate
TLSRSACertificateFile /etc/proftpd.crt
TLSRSACertificateKeyFile /etc/proftpd.key
# Authenticate clients that want to use FTP over TLS
TLSVerifyClient off
#########################ssl/tls############################

now my question is ,have i install the module TLS when i apt-get  install proftpd ??
how to conf proftpd with TLS.
thx


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