questa è al config.. ho provato a smanettarci ma non ne sono venuto a capo...
riuscite a darmi una mano?

#
# /etc/proftpd.conf -- This is a basic ProFTPD configuration file.
# To really apply changes reload proftpd after modifications.
#
ServerName "Raffaello FTP Server"
ServerType standalone
DeferWelcome off
MultilineRFC2228 on
DefaultServer on
ShowSymlinks on
TimeoutNoTransfer 6000
TimeoutStalled 6000
TimeoutIdle 12000
DisplayLogin welcome.msg
DisplayFirstChdir .message
ListOptions "-l"
DenyFilter \*.*/
MasqueradeAddress *.*.*.* (qua c'è il nostro ip esterno)
PassivePorts 60000 65535
DefaultRoot ~
# Uncomment this if you are using NIS or LDAP to retrieve passwords:
#PersistentPasswd off
# Uncomment this if you would use TLS module:
#TLSEngine on
# Uncomment this if you would use quota module:
#Quotas on
# Uncomment this if you would use ratio module:
#Ratios on
# Port 21 is the standard FTP port.
Port 21
# To prevent DoS attacks, set the maximum number of child processes
# to 30. If you need to allow more than 30 concurrent connections
# at once, simply increase this value. Note that this ONLY works
# in standalone mode, in inetd mode you should use an inetd server
# that allows you to limit maximum number of processes per service
# (such as xinetd)
MaxInstances 30
# Set the user and group that the server normally runs at.
User nobody
Group nogroup
# Umask 022 is a good standard umask to prevent new files and dirs
# (second parm) from being group and world writable.
Umask 022
# Normally, we want files to be overwriteable.
AllowOverwrite on
# Delay engine reduces impact of the so-called Timing Attack described in
# http://security.lss.hr/index.php?page=details&ID=LSS-2004-10-02
# It is on by default.
#DelayEngine off
# A basic anonymous configuration, no upload directories.
#
# User ftp
# Group nogroup
# # We want clients to be able to login with "anonymous" as well as "ftp"
# UserAlias anonymous ftp
# # Cosmetic changes, all files belongs to ftp user
# DirFakeUser on ftp
# DirFakeGroup on ftp
#
# RequireValidShell off
#
# # Limit the maximum number of anonymous logins
# MaxClients 10
#
# # We want 'welcome.msg' displayed at login, and '.message' displayed
# # in each newly chdired directory.
# DisplayLogin welcome.msg
# DisplayFirstChdir .message
#
# # Limit WRITE everywhere in the anonymous chroot
#
#
# DenyAll
#
#
#
# # Uncomment this if you're brave.
# #
# # # Umask 022 is a good standard umask to prevent new files and dirs
# # # (second parm) from being group and world writable.
# # Umask 022 022
# #
# # DenyAll
# #
# #
# # AllowAll
# #
# #
#
#
#
# DefaultTransferMode binary
# RootLogin off
# RequireValidShell on
# ShowSymlinks off
# AccessGrantMsg Server di File Raffaello
#
#
# AllowAll
#
#
# Order allow,deny
# AllowUser ftp sftp
# DenyAll
#
#
#