помогите разобратся с настройками

ServerName              myserver.com"   # Здесь указываеться имя Вашего сервера
ServerType              standalone      
ServerAdmin             mymail@example.com
DefaultServer           on              # сервер по умолчанию
RequireValidShell       off             # требовать наличия shell в /etc/shells для логина?
# авторизовывать клиента только если он имеет основной shell из списка /etc/shells; 
# область действия - основной сервер, Global, VirtualHost, Anonymous (ВАЖНО!!!)
AuthPAM                 off             # использовать PAM для авторизации?
AuthPAMConfig           ftp             # имя PAM модуля для авторизации
Port                    21              # номер порта для сервера
Umask                   022             # это число отнимается от 777 для получения маски новосозданных файлов
MaxInstances            30              # максимальное количество процессов (соединений)
MaxClientsPerHost       10              # максимальное количество клиентов подключенных к хосту
TimeoutStalled          300             #
TimeoutNoTransfer       600             #
User                    ftp             # имя пользователя от которого будет запущен сервер
Group                   ftp             # имя группы от которой будет запущен сервер
UseReverseDNS           off
IdentLookups            off
TransferLog             /var/log/proftpd.xfer.log
SystemLog               /var/log/proftpd.syst.log
AllowOverwrite          on
RootLogin               off  # запрещаем вход пользователя root
ShowSymlinks            off
DeleteAbortedStores     on   # Автоматическое удаление недогруженного файла
UseFtpUsers             on   # Бан лист из /etc/ftpusers
AccessGrantMsg          "Welcome to ......."
MaxLoginAttempts        3
<Global>
  DefaultRoot           ~               # Non-anonymous users automatically get jailed in their homedir
  # AllowChmod            false
  DefaultTransferMode   binary          # If anybody actually _needs_ ASCII, they'll know how to set it
  DisplayLogin          welcome.msg
  MaxClients            10
  DenyFilter            \*.*/           # предотвратить попытку положить или взломать демон proftpd
                                        # командой "ls */../*/../*/..."
</Global>
<Anonymous /var/ftp>                   # базовая конфигурация анонимного пользователя
  User                 ftp        # Имя пользователя
  Group                ftp        # Имя группы
  UserAlias            anonymous ftp    # можем входить как anonymous так и ftp
  MaxClients           5                # максимальное количество анонимных клиентов
  #DisplayLogin        welcome.msg      # при логине вывести содержимое welcome.msg
                                        # оно находится в домашней папке пользователя
  DisplayChdir         welcome.msg
  <Limit WRITE>                         # запрет записи
  DenyAll
  </Limit>
</Anonymous>

#
# /etc/proftpd/proftpd.conf -- This is a basic ProFTPD configuration file.
# To really apply changes reload proftpd after modifications.
# 
# Includes DSO modules
Include /etc/proftpd/modules.conf
Include /etc/proftpd/tls.conf
# Set off to disable IPv6 support which is annoying on IPv4 only boxes.
UseIPv6                off
# If set on you can experience a longer connection delay in many cases.
IdentLookups            off
ServerName            "ArtSirius_FTP"
ServerType            standalone
DeferWelcome            off
MultilineRFC2228        on
DefaultServer            on
ShowSymlinks            on
TimeoutNoTransfer        600
TimeoutStalled            600
TimeoutIdle            1200
DisplayLogin                    welcome.msg
DisplayChdir                   .message true
ListOptions                    "-l"
DenyFilter            \*.*/
# Use this to jail all users in their homes 
  DefaultRoot            /home/www/
  DefaultRoot            ~
# Users require a valid shell listed in /etc/shells to login.
# Use this directive to release that constrain.
  RequireValidShell        off
# Port 21 is the standard FTP port.
Port                21
# In some cases you have to specify passive ports range to by-pass
# firewall limitations. Ephemeral ports can be used for that, but
# feel free to use a more narrow range.
# PassivePorts                  49152 65534
# If your host was NATted, this option is useful in order to
# allow passive tranfers to work. You have to use your public
# address and opening the passive ports used on your firewall as well.
#MasqueradeAddress        192.168.1.126
# This is useful for masquerading address with dynamic IPs:
# refresh any configured MasqueradeAddress directives every 8 hours
<IfModule mod_dynmasq.c>
# DynMasqRefresh 28800
</IfModule>
# 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                ftp
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  022
# Normally, we want files to be overwriteable.
AllowOverwrite            on
# Uncomment this if you are using NIS or LDAP via NSS to retrieve passwords:
# PersistentPasswd        off
# This is required to use both PAM-based authentication and local passwords
# AuthOrder            mod_auth_pam.c* mod_auth_unix.c
# Be warned: use of this directive impacts CPU average load!
# Uncomment this if you like to see progress and transfer rate with ftpwho
# in downloads. That is not needed for uploads rates.
#
# UseSendFile            off
TransferLog /var/log/proftpd/xferlog
SystemLog   /var/log/proftpd/proftpd.log
UseReverseDNS             off
<IfModule mod_quotatab.c>
QuotaEngine off
</IfModule>
<IfModule mod_ratio.c>
Ratios off
</IfModule>
# 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. 
<IfModule mod_delay.c>
DelayEngine on
</IfModule>
<IfModule mod_ctrls.c>
ControlsEngine        off
ControlsMaxClients    2
ControlsLog           /var/log/proftpd/controls.log
ControlsInterval      5
ControlsSocket        /var/run/proftpd/proftpd.sock
</IfModule>
<IfModule mod_ctrls_admin.c>
AdminControlsEngine off
</IfModule>
#
# Alternative authentication frameworks
#
#Include /etc/proftpd/ldap.conf
#Include /etc/proftpd/sql.conf
#
# This is used for FTPS connections
#
#Include /etc/proftpd/tls.conf
#
# Useful to keep VirtualHost/VirtualRoot directives separated
#
#Include /etc/proftpd/virtuals.con
# A basic anonymous configuration, no upload directories.
# <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
#   DisplayChdir        .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>
<Global>
    RootLogin off
</Global>
AuthUserFile    /etc/proftpd/ftpd.passwd