详细配置说明：、
http://www.cnblogs.com/app-lin/p/5189762.html
1.安装vsftpd
yum install vsftpd
2.启动/重启/关闭vsftpd服务器
service vsftpd restart
service vsftpd start
service vsftpd stop
…
某些centos 版本得通过 systemctl进行服务管理，如：
systemctl start vsftpd.service
systemctl restart vsftpd.service
systemctl enable vsftpd.service
systemctl disable vsftpd.service
…
3.配置虚拟账号（默认配置是允许匿名登录，可先测试通过再进行如下配置，红色为关键配置）
vim /etc/vsftpd/vsftpd.conf
# Uncomment this to allow local users to log in.
# When SELinux is enforcing check for SE bool ftp_home_dir
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.
# When SELinux is enforcing check for SE bool allow_ftpd_anon_write, allow_ftpd_full_access
anon_upload_enable=NO
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
anon_mkdir_write_enable=NO
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.
dirmessage_enable=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/xferlog
#
# 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 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().
# (Warning! chroot'ing can be very dangerous. If using chroot, make sure that
# the user does not have write access to the top level directory within the
# chroot)
chroot_local_user=YES
chroot_list_enable=NO
# (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=NO
#
# This directive enables listening on IPv6 sockets. By default, listening
# on the IPv6 "any" address (::) will accept connections from both IPv6
# and IPv4 clients. It is not necessary to listen on *both* IPv4 and IPv6
# sockets. If you want that (perhaps because you want to listen on specific
# addresses) then 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.vu
userlist_enable=YES
tcp_wrappers=YES
#
guest_enable=YES
guest_username=myftp
user_config_dir=/etc/vsftpd/vuser_conf
anon_world_readable_only=NO
virtual_use_local_privs=YES
PS：注意chroot_list_filechroot_list_file，user_config_dir 等涉URL参数，如果文件或目录不存在，服务仍可正常启动，如果对应属性没生效，请仔细检查
4.创建虚拟账号
>>新建文本文件，一行账号，一行密码
vim /etc/vsftpd/vuser_passwd.txt
--文本内容: myaccount
--密码: pwd123123
--…
:wq!
>>生成db格式
aptitude search db | grep util
5.创建虚拟账号配置
将刚添加的vftpuser.txt虚拟用户口令文件转换成系统识别的口令认证文件。
首先查看系统有没有安装生成口令认证文件所需的软件db4-utils。rpm –qa |grep db4-utils
rpm –ivh db4-utils-4.3.29-9.fc6.i386.rpm
db_load –T –t hash –f /etc/vsftpd/vuser_passwd.txt /etc/vsftpd/vuser_passwd.db
拷贝备份pam文件，重写配置
cp /etc/pam.d/vsftpd /etc/pam.d/vsftpd.vu
vim /etc/pam.d/vsftpd.vu
auth required pam_userdb.so db=/etc/vsftpd/vuser_passwd
account required pam_userdb.so db=/etc/vsftpd/vuser_passwd：wq!
7.配置虚拟账号宿主账号
adduser -d /opt/vsftp -g ftp -s /sbin/nologin myftp
# -d: 指定用户主目录
# -g: 指定用户组
# -s: 指定登录后分配的shell（nologin表示不可登录）
# myftp: 表示要添加的用户名
8.配置虚拟账号权限
mkdir /etc/vsftpd/vuser_conf
vim linzebin
local_root=/home/myftp/img
:wq!
其它配置
local_root=/opt/vsftp/user1 # 指定用户登录目录
anonymous_enable=NO # 不允许匿名登录
write_enable=YES # 可写
local_umask=022 # 掩码为022
anon_upload_enable=NO # 匿名用户不可上传
anon_mkdir_write_enable=NO # 匿名用户不可创建目录
idle_session_timeout=300 # 会话超时时间300秒
data_connection_timeout=90 # 数据连接超时时间90秒
max_clients=1 # 最大连接数1
max_per_ip=1 # 每个ip最大连接数1
local_max_rate=25000 # 最大传输数率25000B/s