ubuntu9.1 vsftpd配置虚拟用户后本地用户反而无法登录？

[szfhx]

前不久，我在vsftp服务器中配置虚拟用户，
虚拟用户能顺利登录使用，但其他本地用户反而无法登录，
其中：新建一个系统用户virtual，用户家目录为/home/ftp, 用户登录终端设为/bin/false(即使之不能登录系统)
sudo useradd virtual -d /home/ftp -s /bin/false #会不会这句命令出的问题？

不知如何解决？着急啊！
请高手解决
附：我的/etc/vsftpd.conf
# Example config file /etc/vsftpd.conf
#
# The default compiled in settings are fairly paranoid. This sample file
# loosens things up a bit, to make the ftp daemon more usable.
# Please see vsftpd.conf.5 for all compiled in defaults.
#
# READ THIS: This example file is NOT an exhaustive list of vsftpd options.
# Please read the vsftpd.conf.5 manual page to get a full idea of vsftpd's
# capabilities.
#
#
# Run standalone? vsftpd can run either from an inetd or as a standalone
# daemon started from an initscript.
listen=YES
#
# Run standalone with IPv6?
# Like the listen parameter, except vsftpd will listen on an IPv6 socket
# instead of an IPv4 one. This parameter and the listen parameter are mutually
# exclusive.
#listen_ipv6=YES
#
# Allow anonymous FTP? (Beware - allowed by default if you comment this out).
anonymous_enable=NO
#
# Uncomment this to allow local users to log in.
local_enable=YES
#
# Uncomment this to enable any form of FTP write command.
write_enable=YES
#
# Default umask for local users is 077. You may wish to change this to 022,
# if your users expect that (022 is used by most other ftpd's)
#local_umask=022
#
# Uncomment this to allow the anonymous FTP user to upload files. This only
# has an effect if the above global write enable is activated. Also, you will
# obviously need to create a directory writable by the FTP user.
#anon_upload_enable=YES
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
#anon_mkdir_write_enable=YES
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.
dirmessage_enable=YES
#
# If enabled, vsftpd will display directory listings with the time
# in your local time zone. The default is to display GMT. The
# times returned by the MDTM FTP command are also affected by this
# option.
use_localtime=YES
#
# Activate logging of uploads/downloads.
xferlog_enable=YES
#
# Make sure PORT transfer connections originate from port 20 (ftp-data).
connect_from_port_20=YES
#
# If you want, you can arrange for uploaded anonymous files to be owned by
# a different user. Note! Using "root" for uploaded files is not
# recommended!
#chown_uploads=YES
#chown_username=whoever
#
# You may override where the log file goes if you like. The default is shown
# below.
xferlog_file=/var/log/vsftpd.log
#
# If you want, you can have your log file in standard ftpd xferlog format.
# Note that the default log file location is /var/log/xferlog in this case.
xferlog_std_format=YES
#
# You may change the default value for timing out an idle session.
#idle_session_timeout=600
#
# You may change the default value for timing out a data connection.
#data_connection_timeout=120
#
# It is recommended that you define on your system a unique user which the
# ftp server can use as a totally isolated and unprivileged user.
#nopriv_user=ftpsecure
#
# Enable this and the server will recognise asynchronous ABOR requests. Not
# recommended for security (the code is non-trivial). Not enabling it,
# however, may confuse older FTP clients.
#async_abor_enable=YES
#
# By default the server will pretend to allow ASCII mode but in fact ignore
# the request. Turn on the below options to have the server actually do ASCII
# mangling on files when in ASCII mode.
# Beware that on some FTP servers, ASCII support allows a denial of service
# attack (DoS) via the command "SIZE /big/file" in ASCII mode. vsftpd
# predicted this attack and has always been safe, reporting the size of the
# raw file.
# ASCII mangling is a horrible feature of the protocol.
#ascii_upload_enable=YES
#ascii_download_enable=YES
#
# You may fully customise the login banner string:
#ftpd_banner=Welcome to blah FTP service.
#
# You may specify a file of disallowed anonymous e-mail addresses. Apparently
# useful for combatting certain DoS attacks.
#deny_email_enable=YES
# (default follows)
#banned_email_file=/etc/vsftpd.banned_emails
#
# You may restrict local users to their home directories. See the FAQ for
# the possible risks in this before using chroot_local_user or
# chroot_list_enable below.
chroot_local_user=YES
#
# You may specify an explicit list of local users to chroot() to their home
# directory. If chroot_local_user is YES, then this list becomes a list of
# users to NOT chroot().
chroot_local_user=YES
chroot_list_enable=YES
# (default follows)
#chroot_list_file=/etc/vsftpd.chroot_list
#
# You may activate the "-R" option to the builtin ls. This is disabled by
# default to avoid remote users being able to cause excessive I/O on large
# sites. However, some broken FTP clients such as "ncftp" and "mirror" assume
# the presence of the "-R" option, so there is a strong case for enabling it.
#ls_recurse_enable=YES
#
#
# Debian customization
#
# Some of vsftpd's settings don't fit the Debian filesystem layout by
# default. These settings are more Debian-friendly.
#
# This option should be the name of a directory which is empty. Also, the
# directory should not be writable by the ftp user. This directory is used
# as a secure chroot() jail at times vsftpd does not require filesystem
# access.
secure_chroot_dir=/var/run/vsftpd
#
# This string is the name of the PAM service vsftpd will use.
pam_service_name=/etc/pam.d/vsftpd.vu
#
# This option specifies the location of the RSA certificate to use for SSL
# encrypted connections.
rsa_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem

guest_enable=YES
guest_username=virtual
user_config_dir=/etc/vsftpd_user_conf

[szfhx]

附：我使用的添加虚拟用户办法，但影响本地其他用户登录了，不知如何解决？
一、目标
首先我们假定你已经安装了vsftpd，并在/home/ftp目录下建立了以下两个子目录
mkdir /home/ftp/dbzh1
mkdir /home/ftp/dbzh2
下面，我们要建3个虚拟用户，密码分别是用户名後加"00"
db1
db2
db3
使得
用户db1 的主目录为 dbzh1 ，在该目录下只有只读权限
用户db2 的主目录为 dbzh2，在该目录下只有只读权限
用户db3 的主目录为 dbzh1 ，在该目录下拥有所有权限
二、创建虚拟用户数据库
1.创建文本文件/etc/loguser.txt
格式如下：
user_id
password
于是，我们loguser.txt文件的内容为
db1
db100
db2
db200
db3
db300
2.生成数据库
如果你以前没装过db4.7-util 或者你不清楚装没装，需先执行下面的命令
sudo apt-get install db4.7-util
然後，我们执行
sudo db4.7_load -T -t hash -f /etc/loguser.txt /etc/vsftpd_login.db
最後设置一下数据库文件的访问权限
sudo chmod 600 /etc/vsftpd_login.db
三、配置PAM文件
新建gedit /etc/pam.d/vsftpd.vu 内容如下：
auth required /lib/security/pam_userdb.so db=/etc/vsftpd_login
account required /lib/security/pam_userdb.so db=/etc/vsftpd_login
我们上一步建立的数据库 vsftpd_login 在此处被使用
我们建立的虚拟用户将采用PAM进行验证，这是通过/etc/vsftpd.conf文件中的 语句pam_service_name=vsftpd.vu来启用的，稍後你将发现。
四、为虚拟用户创建本地系统用户
新建一个系统用户virtual，用户家目录为/home/ftp, 用户登录终端设为/bin/false(即使之不能登录系统)
sudo useradd virtual -d /home/ftp -s /bin/false #会不会这句命令出的问题？
mkdir /home/ftp
sudo chown virtual.virtual /home/ftp
五、根据需要创建gedit /etc/vsftpd.conf，一般要确保含有一下设置：
listen=YES
anonymous_enable=NO
dirmessage_enable=YES
xferlog_enable=YES
xferlog_file=/var/log/vsftpd.log
xferlog_std_format=YES
chroot_local_user=YES
guest_enable=YES #要添加
guest_username=virtual
user_config_dir=/etc/vsftpd_user_conf
pam_service_name=/etc/pam.d/vsftpd.vu #注意要写全绝对路径
local_enable=YES
需要增加
secure_chroot_dir=/var/run/vsftpd
secure_chroot_dir=/var/run/vsftpd/empty（我的机器中原为这个）
到现在为止，我们的3个用户都可以工作了，可是它们的根目录现在都是/home/ftp，权限也都一样。 那么怎么才能完成我们预定的目标呢？
六、在上面的配置中，有这么一行
user_config_dir=/etc/vsftpd_user_conf
现在，我们要把各个用户的配置文件放到目录/etc/vsftpd_user_conf中
sudo mkdir /etc/vsftpd_user_conf
cd /etc/vsftpd_user_conf
sudo touch db1 db2 db3
db1文件中的内容如下（gedit db1打开文件）
local_root=/home/ftp/dbzh1
同样，db2文件中的内容
local_root=/home/ftp/dbzh2
那么，db3的内容呢？ 其实也很简单
write_enable=YES
anon_world_readable_only=NO
anon_upload_enable=YES
anon_mkdir_write_enable=YES
anon_other_write_enable=YES
local_root=/home/ftp/dbzh1
七、完成
重启vsftpd我们就可以看到效果了^_^
/etc/init.d/vsftpd restart

[opelia]

配置了虚拟用户，就只能用虚拟用户登录，本地用户不能登录，需要另外配置才可以并存

[goodme2050]

楼主，你好，按你的方法建立虚拟用户，为什么登录不上，不知道是哪点出错了，（原先做的时候是本地的用户的登录）

[opelia]

楼主，你好，按你的方法建立虚拟用户，为什么登录不上，不知道是哪点出错了，（原先做的时候是本地的用户的登录）

我知道为什么