install FTP under Debian

install needing package proftpd

aptitude install proftpd

if package not found, update packagelist

aptitude update

edit /etc/proftpd/proftpd.conf

1. No need IPv6
2. No require Shell
3. DefauftRoot = UserRoot
4. Login only for users of the group

UseIPv6 off
<Global>
    RequireValidShell off
</Global>
DefaultRoot ~ ftpuser
<Limit LOGIN>
    DenyGroup !ftpuser
</Limit>

Restart ProFTPd

/etc/init.d/proftpd restart

1. Add Group
2. Add User
3. link User to Group

addgroup ftpusers
adduser ftpuser -shell /bin/false -home /var/www
adduser ftpuser ftpusers

<Anonymous ~ftp>
  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
  <Directory *>
    <Limit WRITE>
      DenyAll
    </Limit>
  </Directory>

#   # Uncomment this if you're brave.
#   # <Directory incoming>
#   #   # Umask 022 is a good standard umask to prevent new files and dirs
#   #   # (second parm) from being group and world writable.
#   #   Umask                           022  022
#   #            <Limit READ WRITE>
#   #            DenyAll
#   #            </Limit>
#   #            <Limit STOR>
#   #            AllowAll
#   #            </Limit>
#   # </Directory>

</Anonymous>

Reload & Start ProFTPd

/etc/init.d/proftpd reload
/etc/init.d/proftpd start