[Zope] zope ftp & firewall setup

hi; I'm wondering if anyone has experience setting up iptables for Zope FTP access. I need to add this service to my machine, but am not sure what an appropriate set of rules would be. This is what I have so far: # Zope FTP (port 8021) # allow incoming tcp requests to port 8021 /sbin/iptables -A INPUT -i $OUTSIDEIF -p tcp \ --source $ANYWHERE --source-port $UNPRIVILEGED \ --destination $OUTSIDEIP --destination-port 8021 \ -j ACCEPT # allow outgoing tcp packets from 8021 /sbin/iptables -A OUTPUT -o $OUTSIDEIF -p tcp \ --source $OUTSIDEIP 8021 --destination $ANYWHERE --destination-port $UNPRIVILEGED \ -j ACCEPT Davis