bascule <[EMAIL PROTECTED]> writes:

> hi florin,
> thanks for replying, i think i might not have been clear, i can enable both 
> active and passive ftp through snf to the actual ftp box, just not both at 
> the same time, the change to enable either is made in the config of proftpd 
> and not on the snf which has ports 49152,49153 forwarded to the actual ftp 
> box, the ftp box has proftpd set up to offer passive connection s on those 
> two ports and this works fine as long as proftpd also has the ip address of 
> snf in its config as well, however specifying the ip address of the firewall 
> in proftpd stops active ftp from working, commenting out the relevant line in 
> /etc/proftpd.conf allows active but breaks passive ftp, the suggested 
> solution from the proftpd list was the following

> ---snip----
> On your firewall, what you need to do is load the ip_masq_ftp 
> modules with the following aguments
> 
> modprobe ip_masq_ftp in_ports=20,21,49157,49153
> ----snip-----
> my question is that i don't know anything about 'ip_masq_ftp' my snf is all 
> set up via the web interface, is this proposed solution applicable to snf, 
> does snf use this 'ip_masq_ftp' whatever it is, if so where do i put this to 
> be permanent assuming it works), i want to try this 'solution' but i don't 
> wnat to break anything !

Hello there,

the module is compiled in the kernel alright but I haven't test it too
much, i must admit.

make sure you install the kernel-source package.

[root@firewall /root]# rpm -ql kernel-source|grep ftp
/usr/src/linux-2.2.19/net/ipv4/ip_masq_ftp.c

then edit that file ... it will show you some examples. 
You should do a port-forwarding for the  49157,49153 ports.

you could add the right entries in the /etc/modules.conf file or even in
some initscript, say /etc/rc.d/rc.local or the end of /etc/rc.d/rc.sysinit
(add modprobe bla bla) 

sincerely,
-- 
Florin                  http://www.mandrakesoft.com

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