proftpd服务正常但是无法连接

wtramp

ServerName                      "roFTPD Default Installation"
ServerType                      inetd
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.
RootLogin                       off
RequireValidShell               off
#DefaultRoot ~ ftp

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

# A basic anonymous configuration, no upload directories.  If you do not
# want anonymous users, simply delete this entire <Anonymous> section.
<Anonymous ~ftp>
ServerName                      "roFTPD Default Installation"
ServerType                      inetd
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.
RootLogin                       off
RequireValidShell               off
#DefaultRoot ~ ftp

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

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

  # We want clients to be able to login with "anonymous" as well as "ftp"
  UserAlias                     anonymous ftp

  # 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
  <Limit WRITE>
    DenyAll
  </Limit>
</Anonymous>



message文件


Oct 17 10:21:40 83 proftpd[28056]: 82.77.178.61.dail.lz.gs.dynamic.163data.com.cn - ProFTPD terminating (signal 11)
Oct 17 10:21:40 83 proftpd[28056]: 82.77.178.61.dail.lz.gs.dynamic.163data.com.cn - FTP session closed.
Oct 17 10:21:45 83 proftpd[28057]: 82.77.178.61.dail.lz.gs.dynamic.163data.com.cn - error: unable to determine IP address of '82.77.178.61.dail.lz.gs.dynamic.163data.com.cn'

有谁能帮我分析下吗？这是怎么回事？