1. #yum install vsftpd
2.#user add -s /sbin/nologin web //添加一个用于ftp的主用户
3.
cd /etc/vsftpd
vi vftpuser.txt
#写入虚拟用户名和密码，一行用户名，一行密码，多用户依此类推
admin
admin
#这里添加了一个admin用户密码是admin
4.
#db_load –T –t hash –f /etc/vsftpd/vftpuser.txt /etc/vsftpd/vftpuser.db
#如果db_load用不了，请yum install db4-utils
5.
#vi /etc/pam.d/vsftpd
将所有行注释或删除掉，添加两行：
auth required /lib/security/pam_userdb.so db=/etc/vsftpd/vftpuser
account required /lib/security/pam_userdb.so db=/etc/vsftpd/vftpuser
#注意，如果是64位系统，这里/lib/要改成/lib64/
6.
#vi vsftpd.conf
添加：
guest_enable=YES
#开启虚拟用户
guest_username=vftpuser
#FTP虚拟用户对应的系统用户
user_config_dir=/etc/vsftpd/vsftpd_user_conf
#用户独立配置文件所在目录
wq保存退出，附上测试自己用的vsftpd.conf文件，在最下面
7.
#mkdir vsftpd_user_conf
#cd vsftpd_user_conf
#vi admin
#这里新建配置文件名和你添加的虚拟用户名保持一致
写入：
write_enable=YES
anon_world_readable_only=NO
anon_upload_enable=YES
anon_mkdir_write_enable=YES
anon_other_write_enable=YES
virtual_use_local_privs=YES
chmod_enable=YES
#默认虚拟用户宿主目录就是web用户的目录，如果需要将虚拟用户绑定到指定目录添加以下
local_root=/home/wwwroot/admin
wq保存退出
8.
#mkdir /home/wwwroot/admin
#chown -R web:web /home/wwwroot/admin
#chmod -R 755 /home/wwwroot/admin
9.#service vsftpd restart
10.特殊情况
如果出现无法登陆的情况，请先关闭selinux
set enforce 0
当然，最好手动配置selinux，这样比较安全。
#getsebool -a|grep ftp
ftpd_disable_trans --> off
或者
ftp_home_dir-->off
# setsebool -P ftpd_disable_trans 1
或者
# setsebool -P ftp_home_dir 1
11.限制虚拟用户只能在自己的目录内"活动"
#vi /etc/vsfptd/vsftpd.conf
找到以下几个配置项，将注释取消掉，意思是除了chroot_list里的用户可以随意“活动”，其他用户只能在自己家里"活动"，设置各个虚拟用户"家目录"的方法在第7步已经说明local_root参数
chroot_local_user=YES
chroot_list_enable=YES
chroot_list_file=/etc/vsftpd/chroot_list
#wq
#vi /etc/vsftpd/chroot_list
#wq
#service vsftpd restart
附录：
vsftpd.conf
# Example config file /etc/vsftpd/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.
#
# 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
#
# The target log file can be vsftpd_log_file or xferlog_file.
# This depends on setting xferlog_std_format parameter
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
#
# The name of log file when xferlog_enable=YES and xferlog_std_format=YES
# WARNING - changing this filename affects /etc/logrotate.d/vsftpd.log
#xferlog_file=/var/log/xferlog
#
# Switches between logging into vsftpd_log_file and xferlog_file files.
# NO writes to vsftpd_log_file, YES to xferlog_file
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 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
#
# When "listen" directive is enabled, vsftpd runs in standalone mode and
# listens on IPv4 sockets. This directive cannot be used in conjunction
# with the listen_ipv6 directive.
listen=YES
#
# This directive enables listening on IPv6 sockets. To listen on IPv4 and IPv6
# sockets, you must run two copies of vsftpd with two configuration files.
# Make sure, that one of the listen options is commented !!
#listen_ipv6=YES
pam_service_name=vsftpd
userlist_enable=YES
tcp_wrappers=YES
guest_enable=YES
guest_username=web
user_config_dir=/etc/vsftpd/vsftpd_user_conf