On Sun, 12 Sep 2010 20:59:08 +0200, David Touzeau <[email protected]> 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
