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> I'm currently using ports 20 and 21 on the firewall server for nominal ftp
> access untill I can get internal box working.
>
> I'm not sure what you mean by allowing port 20 as well, since I'm
connecting
> to the ftp server through port 2001. On the internal server I'm using
port
> 21 the default for glftpd, I don't think there is a setting to use port 20
> as well. I guess I'm a little confused here.
>
> carl
I'm not sure if this has been answered yet, as I am reading the digest
version of this list, forgive if this is redundant.
Your problem is that the FTP client can't initate a connection to the data
FTP port. FTP actually uses TWO ports, the command/status port (default 21)
and the data port (default 20). When you initiate a transfer such as a
directory or file download, the FTP client attempts to connect on the data
port to actually receive the data. If you are only allowing port 2001
through, the client won't be able to do this.
Frankly, I have no idea how you tell the client what data port you are
using, but you'll have to find out, or forward the default port 20 to the
internal box.
Darren
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