ftp download errors with squid proxy (centos)
 

hello...
i have encountered my first issue with using squid proxy, i cannot download files from FTP servers.
please help..thanks much!

the error looks like this:
use PORT of PASV

and the other is:
* Read Error

The system returned:

(104) Connection reset by peer

An error condition occurred while reading data from the network. Please retry your request.

and the other is this:

hi
 

did you deny port 21 on squid config file? if it is denied please allow it.

FTP is going to use a control and data port.

rainofkayos@animal ~ [3174] % getent services ftp ftp-data
ftp 21/tcp
ftp-data 20/tcp

In FTP's Passive mode the client side initiates the communication to by default port 20. In which case I believe there is a statement you add to enable passive transfers via squid which is something like 'ftp_passive on'. (http://www.squid-cache.org/Doc/config/ftp_passive/). Another thing to note which I have faced in the past is what is actually resetting the connection? Is it squid resetting this connection or could it be a NAT Firewall which this communication traverses?