> -----Original Message-----
> From: Nick Hibma [SMTP:nick.hi...@jrc.it]
> Sent: Wednesday, May 26, 1999 1:38 PM
> To: Jordan K. Hubbard
> Cc: curr...@freebsd.org
> Subject: Re: FTP passive mode - a new default?
>
>
> Is there a list of pro-/cons- available?
>
> - it is slower, but by how much and on which types of lines (low/high
> latency, low/high bandwidth)?
[ML] same speed. passive means that the client (and not the
server) opens the data connection. advantageous for people sitting
behind packet or nat firewalls.
> - any (windows) tools not supporting it?
[ML] this is an ftp client request. some ancient ftp servers
may not support passive data connections, but I haven't seen one of
those in a long while. I don't know whether the windows ftpd is
incapable of passive mode. actually, if the passive mode default is
implemented correctly, the client should send PASV and if the server
accepts it proceed, otherwise remain in active mode (and if you are
behind a nat or a firewall you are no worse off than you already were).
/Marino
> Nick
>
> > Unless I hear unanimous fierce outcry against it, I'm strongly
> > considering making FTP_PASSIVE_MODE obsolete by virtue of being the
> > default for all tools/libraries which currently examine it.
> > FTP_ACTIVE_MODE will be the new flag for toggling the previous
> > behavior.
> >
> > Given the state of the Internet today, I think this is purely a
> > sensible change in defaults. Comments?
> >
> > - Jordan
> >
> >
> > To Unsubscribe: send mail to majord...@freebsd.org
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> >
> >
>
> --
> ISIS/STA, T.P.270, Joint Research Centre, 21020 Ispra, Italy
>
>
>
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