active ftp through firewall

From: Pamela (dey_indrani_at_hotmail.com)
Date: 05/19/04 

Date: 19 May 2004 12:10:19 -0700

I am trying to send PORT command to a ftp server from the firewall
machine. I am sending the puclic ip address to the ftp server. Looks
like port command is successfull because I get status = 200 for it.
But after that ftp server unable to initiate data connection to that
port.

I am able to do data connection using passive connection to this ftp
server but not able to make active connection.

Relevant Pages

  • Re: Why do i need to use passive transfers?
    ... data connection from its TCP port 20 to a port specified by the FTP client ... The FTP server in PORT mode does not try ... The reason why PASV mode works so often behind a firewall is that the ... establish the data connection with the client. ...
    (comp.security.firewalls)
  • Re: Ftp server behind a router issue
    ... A firewall must protect the ... It means that DMZ is separated from Internet ... If your local ftp server uses a private IP address and DLink DI-604 firewall ... In your case, you access your ftp server from Internet, maybe PORT command ...
    (comp.security.firewalls)
  • Re: active ftp through firewall
    ... >> I am trying to send PORT command to a ftp server from the firewall ... I am sending the puclic ip address to the ftp server. ... >> I am able to do data connection using passive connection to this ftp ...
    (comp.security.misc)
  • Re: active ftp through firewall
    ... >> I am trying to send PORT command to a ftp server from the firewall ... I am sending the puclic ip address to the ftp server. ... >> I am able to do data connection using passive connection to this ftp ...
    (comp.security.ssh)
  • Re: active ftp through firewall
    ... >> I am trying to send PORT command to a ftp server from the firewall ... I am sending the puclic ip address to the ftp server. ... >> I am able to do data connection using passive connection to this ftp ...
    (comp.security.unix)