RE: Start up scripts
But in passive FTP you don't have a FTP-DATA connection, do you? I think
we were talking about the possibility to get rid of the module by
allowing passive mode only.
Michael
--
Dr. Michael Meskes, Projekt-Manager | topystem Systemhaus GmbH
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> ----------
> From: Bernd Eckenfels[SMTP:lists@lina.inka.de]
> Sent: Freitag, 6. März 1998 23:23
> To: Bernd Eckenfels
> Subject: Re: Start up scripts
>
> Hello,
>
> > Where is the FTP-DATA module and why does it need to be refreshing
> the
> > Control connection....why doesn't the control connection refresh
> > itself?
>
> I was talking about masqueraded connections (or statefull packet
> filters).
> Both tend to clear connections from the memory table after some amount
> of
> inactivity. If you transfer large files, then during the transfer over
> the
> data connection there is usually no data running accross the control
> connection. Generally this means the Firewall will timeout the control
> connection during the transfer. The FTP programm will barf at the end
> of the
> data transfer if it tries to go back to the control stream. This is
> not a
> problem for simple packet filters, but I'm not surer if a simple
> packet
> filter is state of the art for a good firewall.
>
> Greetings
> Bernd
>
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