PASV FTP

lisj lisj at necas.nec.co.jp
Thu Jul 25 02:11:39 BST 2002



> 
> there's a section on PASV ftp in the HOWTO. I would test
> without filter rules first.

I have seen the PASV ftp section in the HOWTO, but it seems
have no help.

It seems that, in RedHat Linux7.1, the ftpd send the data port
and its real IP to the client in its data section of the packet.
And then the client use the real IP of the ftp server and the 
port it received  to establish the data connection with the ftp
server.


> 
> Joe
> 
> -- 
> Joseph Mack PhD, Senior Systems Engineer, Lockheed Martin
> contractor to the National Environmental Supercomputer Center, 
> mailto:mack.joseph at epa.gov ph# 919-541-0007, RTP, NC, USA
> 
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