proftp的问题

larx

我的proftp.conf如下
# 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                        "roFTPD Default Installation"
ServerType                        standalone
DefaultServer                        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

# 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 under which the server will run.
User                                nobody
Group                                nobody

# To cause every FTP user to be "jailed" (chrooted) into their home
# directory, uncomment this line.
#DefaultRoot ~

# Normally, we want files to be overwriteable.
<Directory />
  AllowOverwrite                off
</Directory>

# A basic anonymous configuration, no upload directories.  If you do not
# want anonymous users, simply delete this entire <Anonymous> section.
<Anonymous /var/ftp>
  User                                ftp
  Group                                ftp

  # We want clients to be able to login with "anonymous" as well as "ftp"
  UserAlias                        anonymous ftp
  AuthAliasOnly                        on
  # 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 /var/ftp/>
  <Limit WRITE>
  DenyAll
</Limit>
</Directory>

<Directory /var/ftp/upload/>

<Limit WRITE>
AllowAll
</Limit>
</Directory>

<Directory /var/ftp/incoming/>
<Limit WRITE>
DenyAll
</Limit>

<Limit READ>
AllowAll
</Limit>
</Directory>
</Anonymous>
匿名可以登陆下载，可是不能上传
/var/ftp/upload权限为777
每次上传都skipped，
这是怎么回事？
很急
谢谢