On Tue, 27 Jul 1999, Trenton D. Adams wrote:
> I just had this same problem. I remembered I seen a post having to do with
> this, and here I am. when I ftp using windows 98 FTP command, I get this
> error when typing ls at the command line.
>
> Can't build data connection: no PORT specified
>
> Here is what I have found about IP Masquerading. When making a connection,
> the person behind the firewall must make the initial connection. Because of
> this, the ftp logs in to the remote system just fine. (You initiated the
> connection) When you type ls, the FTP server tries to open up an ftp-data
> port back to you, but it doesn't work! Why, because like I said, you must
> initiate the inital connection. How do you do this? I don't know.
>
Sounds like you've forgotten to load the ftp masquerading module.
# modprobe ip_masq_ftp
should solve it.
Cheers,
Colin.
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