Re: flexfax: Firewall and ports etc.

["Petr Novotny" <Petr.Novotny@antek.cz>]

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> OK, can I make any changes to the source code and tell it to use specific
> ports, or somehow limit the range of ports it is allowed to use ?

Sorry to step into the discussion after having missed the very first 
question of the thread.

If you are looking for "masquerading" type of solution, I think you 
can easily deduce from Linux's ip_masq_ftp module how to act.

As for more generic "forwarding proxy" solution, I think it shouldn't 
be difficult to parse the protocol and look for 
PORT a,b,c,d,e,f
lines (change them, and behave accordingly). At least when I 
played with FTP, this seemed pretty trivial.

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--
Petr Novotny, ANTEK CS
Petr.Novotny@antek.cz
http://www.antek.cz
PGP key ID: 0x3BA9BC3F
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