strange solution with ftplib and changed firewall rules

Andrew Bennetts andrew-pythonlist at
Fri Jan 31 14:31:06 CET 2003

On Fri, Jan 31, 2003 at 12:36:59AM -0800, PiErre wrote:
[..snip FTP firewall problems..]
> Isn't all this problem twisted? Or is my solution twisted?

Nope, just that FTP and firewalls don't mix.  In fact, FTP is usually a bad

> Since it seems that quite all the firewalls in the world allows passive
> connections if any should I warn my customer that he could have
> a security problem?

If you're using FTP, regardless of firewalls and active or passive mode, you
probably have a security problem, as it transmits everything, including
authentication details, in the clear.


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