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Re: ip_masq_ftp

On Sat, 24 Nov 2001 03:28, Bernd Eckenfels wrote:
> On Sat, Nov 24, 2001 at 11:44:48AM +1100, Iain wrote:
> > $IPCHAINS -A input -j ACCEPT -i $i -d $IPOFIF/32 -p tcp ! --syn
> >
> > Now this works fine for masquerading except for outgoing FTP. Passive FTP
> > works fine but normal FTP doesn't.
> >
> > Now I thought that this is what the ip_masq_ftp modules is for. And this
> > module works if I'm not blocking all incoming SYN packets.
> You need to allow the Masquerade Port Range to open incomming connections.
> Actually you can specify a port range for it. This is because the Input
> chain is consulted before the established check can apply. This is better
> solved in ipchains.

How do you specify a port range for it?

> Anyway, I do not recommend to allow active FTP inside anyway.

why not?

> > So I guess my question is, does ip_masq_ftp use a discrete range of ports
> > for FTP connections or does it use everything between 1024-65535?
> I dont have the 2.2 code here, but in 2.4 it is 61000 - 65095 (hardwired in
> the module).


> Greetings
> Bernd

public key available at http://www.minihub.org/~iain/iain.asc

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