ti posso postare le prime righe del mio proftpd.conf

#
# To have more informations about Proftpd configuration
# look at : http://www.proftpd.org/
#

# This is a basic ProFTPD configuration file (rename it to
# 'proftpd.conf' for actual use. It establishes a single server
# and a single anonymous login. It assumes that you have a user/group
# "nobody" and "ftp" for normal operation and anon.

ServerName "ProFTPD"
ServerType inetd
ServerType inetd
DefaultServer on
<Global>
DefaultRoot ~ psacln
AllowOverwrite on
</Global>
DefaultTransferMode binary
UseFtpUsers on

# Port 21 is the standard FTP port.
Port 21
# Umask 022 is a good standard umask to prevent new dirs and files
# from being group and world writable.
Umask 022
....
....
con il firewall impostato come prima ti ho detto mi funziona perfettamente
ciao
sergio