Re: [squid-users] FTP: Error NLST Unable to build data connection: Invalid argument

On Sun, 12 Sep 2010 20:59:08 +0200, David Touzeau <david_at_touzeau.eu>
wrote:
> Dear all
>
> I'm using squid 3.1.7, when i'm browsing on ftp server like
>
> ftp://ftp.univ-tlse1.fr/
> ftp://ftp.redhat.com
>
> Browser give error :
> ******************************************************************
> An FTP protocol error occurred while trying to retrieve the URL:
> ftp://ftp.univ-tlse1.fr/
>
> Squid sent the following FTP command:
> NLST
>
> The server responded with:
> Unable to build data connection: Invalid argument
>
> ******************************************************************
>

A few minutes on google indicates that you have a firewall blocking
incoming FTP data connections. The server is unable to send you the
directory listing when requested.

Amos
Received on Sun Sep 12 2010 - 23:27:34 MDT