===ipf rules===

<code ipf>
pass in quick on sip0 proto tcp from any to 83.xxx.104.34 port = 21 keep state # FTP Cmd
pass in quick on sip0 proto tcp from any to 83.xxx.104.34 port 64000 >< 65000 flags S keep state # FTP Passive
pass in quick on sip1 proto tcp from 83.xxx.104.34 port = 20 to any keep state # FTP Data (Active)
</code>

SIP0 is the Public Interface, SIP1 is the DMZ One. 83.xxx.104.34 is the public FTP's address

===Configuration sample (proftpd)===

<code>
PassivePorts                    64000 65000
IdentLookups                    off
</code>

===Links===

   * [[http://slacksite.com/other/ftp.html|About FTP (active, passive)]]