erik,
the best reference for the protocol would be the RFCs, but the best
reference relating ftp to security, would be http://cr.yp.to/ftp.html
check out:
http://cr.yp.to/ftp/retr.html
http://cr.yp.to/ftp/security.html
--truman
On Thu, 31 May 2001 [EMAIL PROTECTED] wrote:
> sorry, didn't mean for the tail end of the message to hit the list, forgot
> to delete. it was the easiest way to get the address into the to: line.
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED]
> Sent: Thursday, May 31, 2001 8:43 PM
> To: '[EMAIL PROTECTED]'
> Subject: PASV FTP description
>
>
> Can anyone briefly describe the difference between PASV ftp vs. non-PASV
> (regular? active?) with reguards to how the ports get assigned?
>
> What considerations on firewalls (any brand) need to made when
> distinguishing between the two?
>
> The way I understand regular FTP, the client connects to server on port 21
> then the server connects back to client on 20 with the data. Is this correct
> and how is PASV different?
>
> -erik
>
>
> -
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