FTP vs Firefox

Justin C. Sherrill justin at shiningsilence.com
Mon Jun 9 07:32:50 PDT 2008

On Sun, June 8, 2008 9:23 pm, Sdavtaker wrote:

>> The firefox ftp://user@ip opens the log window, i insert my nick and
>> pass waits for a minute or 2 and fails.

You mentioned the FTP server is back on a private IP.  If I recall how
this works correctly, the server is trying passive FTP and redirecting the
data flow to a separate, higher port.  Login works normally, which is why
you get the dialog for username/password, but the equivalent of a 'ls' is
what Firefox is doing and why it never loads the page.  The directory
listing data is what goes out over the data connection that the FTP server
is trying to express on that higher port.  That higher port is probably

Whatever device is handling the gateway for your private network and doing
the port map back to the original system needs to be set to handle the
random higher port assignment - I don't recall what you wrote is being
used, but look up passive vs. active FTP and there should be something

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