rpm -qa vsftpd|grep vsftpd

yum -y install vsftpd

systemctl enable vsftpd.service  #开机自启

systemctl restart vsftpd.service #启动

[root@htuidc ~]# lsof -i:21

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME

vsftpd 31660 root 3u IPv6 72248 0t0 TCP *:ftp (LISTEN)

vsftpd 31661 nobody 0u IPv6 72249 0t0 TCP htuidc.bgp.ip:ftp->hn.kd.ny.adsl:25143 (ESTABLISHED)

vsftpd 31661 nobody 1u IPv6 72249 0t0 TCP htuidc.bgp.ip:ftp->hn.kd.ny.adsl:25143 (ESTABLISHED)

vsftpd 31661 nobody 2u IPv6 72249 0t0 TCP htuidc.bgp.ip:ftp->hn.kd.ny.adsl:25143 (ESTABLISHED)

vsftpd 31666 txidc 0u IPv6 72249 0t0 TCP htuidc.bgp.ip:ftp->hn.kd.ny.adsl:25143 (ESTABLISHED)

vsftpd 31666 txidc 1u IPv6 72249 0t0 TCP htuidc.bgp.ip:ftp->hn.kd.ny.adsl:25143 (ESTABLISHED)

vsftpd 31666 txidc 2u IPv6 72249 0t0 TCP htuidc.bgp.ip:ftp->hn.kd.ny.adsl:25143 (ESTABLISHED

[root@htuidc ~]# tree /etc/vsftpd/

/etc/vsftpd/

├── chroot_list #自建的允许切换用户清单

├── ftpusers  #ftpusers配置文件,在里面的用户禁止使用ftp登陆

├── user_list #文件禁止登录FTP的用户

├── vsftpd.conf #主配置文件

└── vsftpd_conf_migrate.sh

sed -i "s#anonymous_enable=YES#anonymous_enable=NO#g" vsftpd.conf

11 # Allow anonymous FTP? (Beware - allowed by default if you comment this out).

12 anonymous_enable=NO

local_enable=YES

useradd -d /data/ftp/video/ -s /sbin/nologin txidc

echo "abcdef" |passwd --stdin testftp  #设置ftp密码

write_enable=YES

chroot_local_user=YES #所有用户限制目录

chroot_list_enable=YES #允许使用用户清单文件

chroot_list_file=/etc/vsftpd/chroot_list #此清单的用户能切换目录

max_clients=50 #最大连接50个

max_per_ip=5 #同一个IP最多5个连接

响应： 331 Please specify the password

[root@htuidc ftp]# chmod u-w video/

[root@htuidc ftp]# ll

total 4

dr-x------. 3 txidc ftp 4096 Nov 5 22:20 video

[root@htuidc ftp]# ll video/

total 4

drwxr-xr-x. 2 txidc ftp 4096 Nov 5 22:21 pub

# 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

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.

# 这个选项不是最全的.可以阅读vsftpd.conf.5,获取比较详细的设置选项

# 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). #允许匿名登陆FTP?(默认注释掉是允许),

#所以禁止登陆的话,需要手返改成anonymous_enable=NO

anonymous_enable=YES

#

# Uncomment this to allow local users to log in. #是否允许本地用户登陆,注释掉是不允许.

local_enable=YES

#

# Uncomment this to enable any form of FTP write command. #是否允许用户写入,当设置为NO时,则用户无法上传文件

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) #FTP里面本地用户使用的umask值,默认是077

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 #取消掉注释,允许匿名用户上传文件,这个生效只有在全局的上传打开才行,你也可以明显的创建个目录

#让FTP用户可写

#

# Uncomment this if you want the anonymous FTP user to be able to create

# new directories.

#anon_mkdir_write_enable=YES #是否允许匿名用户建立目录.

#

# Activate directory messages - messages given to remote users when they

# go into a certain directory. #进入每个用户是否显示欢迎信息

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 #上传下载文件时记录日志

#

# 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! #不建义使用root用户上传文件

#chown_uploads=YES #修改匿名用户上传的拥有者

#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. #会话超时时间,客户端连接FTP.但没操作的时间

#idle_session_timeout=600

#

# You may change the default value for timing out a data connection. #数据传输超时最长时间

#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 #指定vsftp服务的运行帐户.

#

# 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 #是否允许客户端使用sync命令

#

# 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 #是否允许上传和下载2进制文件

#ascii_download_enable=YES

#

# You may fully customise the login banner string: #登陆欢迎信息

#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

#

#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_list_enable=YES #指定一个不能离开家目录的用户名单

# (default follows)

#chroot_list_file=/etc/vsftpd/chroot_list #设置名单文件的路径

#使用上面的方法必须 chroot_local_user=NO

说明:

1.chroot_local_user=YES,单独这个设置,则所有用户,被锁定自己的家目录中.无法切换到上一级其它目录.

2.chroot_local_user=YES,

chroot_list_enable=YES .这2项在一起,则变为,这个清单下面的用户/etc/vsftpd/chroot_list,能改变目录,不会被chroot

3.chroot_local_user=NO

chroot_list_enable=YES, 这2项在一起,则变为,这个清单下面的用户不能改变自己的目录,会被chroot

# 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 #允许使用ls -r

#

# 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 #开启IPV4监听

#

# This directive enables listening on IPv6 sockets. To listen on IPv4 and IPv6

# sockets, you must run two copies of vsftpd whith two configuration files.

# Make sure, that one of the listen options is commented !!

#listen_ipv6=YES #开启IPV6监听

pam_service_name=vsftpd

userlist_enable=YES #直接禁止userlist_file中的用户登陆.也不提示用户输入密码

tcp_wrappers=YES

~

# chroot_local_user设置了YES，那么所有的用户默认将被chroot，

# 也就用户目录被限制在了自己的home下，无法向上改变目录。

# chroot_list_enable设置了YES，即让chroot用户列表有效。

# ★超重要：如果chroot_local_user设置了YES，那么chroot_list_file

# 设置的文件里，是不被chroot的用户(可以向上改变目录)

# ★超重要：如果chroot_local_user设置了NO，那么chroot_list_file

# 设置的文件里，是被chroot的用户(无法向上改变目录)