You should read ftp://ftp.echogent.com/docs/FTP_and_Firewalls.pdf because
this is a challenging problem that requires cooperation between your
firewall and server to solve.
Depending on why you want ftp, you may find it better to use an
alternative protocol like ssh (scp) or http.
On Sat, 1 Jun 2002, Jeff wrote:
> Ok, after fighting the war to get tcp forwarding working on Eigerstein
> 3.1.0,
> adding EXTERN_TCP_PORTS="0/0_ssh 0/0_smtp 0/0_tcp"
> and
> the tuple to INTERN_SERVERS="tcp_${EXTERN_IP}_ftp_192.168.2.201_ftp"
> and uncommenting INTERN_FTP_SERVER, changing it's IP to mine,
> INTERN_FTP_SERVER=192.168.2.201 # Internal FTP server to make available
>
> I finally was able to ftp connect from an external machine.
>
> But, after I ftp connect and log in and enter 'ls' command I get
> 227 Entering passive Mode(192,168,2,201,172,45)
> and it finally times out.
> Coming from an internal machine and loggiong in as the same user does
> not cause this error.
>
> Other commands. pwd, cd, etc, work fine.
>
> What the hell is going on?
> What do I need to do to get ftp to work from an external source?
> If memory serves me correct, doesn't ftp open ANOTHER port for
> transferring the output of ls data, and do the same thing when you
> transfer a file?
>
> I have been pulling what little hair I have left out over this.
>
> --
> Jeff
> [EMAIL PROTECTED]
>
> _______________________________________________________________
>
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Don't miss the 2002 Sprint PCS Application Developer's Conference
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