ftp is a horrible protocol to try to firewall because of all the ports it uses, i suggest using the package 'iptraf' to see what ports are being used when you connect to it. there are 2 modes of ftp, passive and active. Switch your ftp client to PASSIVE mode and it should work(i just tried it) using unix ftp just type 'passive'. To get active mode working you will have to forward thousands of ports most likely as i believe it uses a random port above 1024. You can also try to find a ftp server that forces the client into passive mode if you have users that won't know how to use passive. IMO though, ftp is insecure and i reccomend using SSH w/scp to transfer files(it encrypts both the login and the data).
FTP RFC: http://www.cis.ohio-state.edu/rfc/rfc0959.txt nate Paulo Henrique Baptista de Oliveira wrote: > > Hi all, > I have a box acting a firewall and forwarded 20 and 21 ports to > inside. > I can ftp to FIREWALL but can do ls and transfer dirs or files. I load > ipmasq_ftp and ipmasq_portfw modules, but no way. > > ipmasqadm portfw -a -P tcp -L $FIREWALL 20 -R $INTERNAL 20 > ipmasqadm portfw -a -P tcp -L $FIREWALL 21 -R $INTERNAL 21 > > Any help is apreciated. Thanks, Paulo Henrique > > -- > Unsubscribe? mail -s unsubscribe [EMAIL PROTECTED] < /dev/null -- ::: ICQ: 75132336 http://www.aphroland.org/ http://www.linuxpowered.net/ [EMAIL PROTECTED]
