proftp 일반계정으로 접속이 안됩니다.

vmware로 리눅스 페도라 코어 4를 깔아서 proftp 1.9.10을 사용하고 있습니다.

anonymous로 업로드는 안되지만 접속은 잘되구 있구요.

그런데 root나 다른 계정(gang4)으로 접속하려 하면 다음과 같은 메세지가 나옵니다.

331 Password required for gnag4 

530 Login incorrect.

다음은 proftp.conf 파일입니다. 뭐가 잘못 됬는지 도저히 알수가 없네요

ServerName   "ProFTPD 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.
AllowOverwrite  on

# Bar use of SITE CHMOD by default
<Limit SITE_CHMOD>
  #DenyAll
  AllowAll
</Limit>

# 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>
    AllowAll
  </Limit>
</Anonymous>

#DefaultRoot ~!wheel
TimesGMT OFF