centos7安装vsftpd

vsftp安装 创建用户 并限定用户在自己的目录

1、查看是否已经安装了vsftpd

vsftpd -version

2、安装vsftpd（CentOS7）

yum install -y vsftpd

3、新建FTP目录

创建的FTP目录如下：

/data/KodServer/data/User/tomas/home

4、创建新用户

ftpname为你为该ftp创建的用户名，/data/KodServer/data/User/tomas/home 为登录进去后的位置

useradd -d /data/KodServer/data/User/tomas/home -s /bin/bash ftpname

5、为新建的用户设置密码

passwd ftpname

【备注：用cat etc/passwd可以查看当前系统用户】

6、设置主目录（更改登录时看到的目录，看个人需要更改，如果第4步已设置好，此步可忽略）

usermod -d /data/KodServer/data/User/tomas/home ftpname

7、添加用户组（这步可忽略）

groupadd ftpgroup

8、防火墙添加FTP服务

firewall-cmd --permanent --zone=public --add-service=ftp

firewall-cmd --reload

解决办法：

①、查看ftp的Selinux状态：sestatus -b | grep ftp

②、在结果中可以看到： ftp_home_dir off

③、将状态改为on：setsebool -P ftp_home_dir on

④、重启vsftp服务：systemctl restart vsftpd.service

setsebool -P ftpd_full_access on

systemctl restart firewalld.service

9、配置只能访问自身目录（/data/KodServer/data/User/tomas/home），不能访问其他路径

修改/etc/vsftpd.conf

cd /etc/vsftpd/

vi vsftpd.conf

#去掉前面的注释

chroot_local_user=YES

ascii_upload_enable=YES

ascii_download_enable=YES

#文件末尾添加

allow_writeable_chroot=YES

保存，重启vsftpd

设置开机启动：

systemctl enable vsftpd.service

启动vsftpd服务

systemctl start vsftpd.service

禁止ftp用户通过22端口登录ftp服务器：

由于需要限制ftp用户在自己的目录，在21端口下没有问题，但当ftp用户用sftp登录时，还是可以访问上级目录，于是禁止ftp用户ssh登录，切断22端口的通信。

首先，执行如下命令，找到nologin的shell：

vi /etc/shells

可以看到禁止登录的shell文件为/usr/sbin/nologin，然后执行如下命令：

usermod -s /usr/sbin/nologin tomas

如果要恢复tomas的ssh登录，执行如下命令：

usermod -s /bin/bash tomas

————————————————

原文链接：https://blog.csdn.net/wangkai_123456/java/article/details/78612656

配置文件：

# 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.

# 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=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

#

# Activate logging of uploads/downloads.

xferlog_enable=YES

#

# Make sure PORT transfer connections originate from port 20 (ftp-data).

# g_enable

#

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. The vsftpd.conf(5) man page explains

# the behaviour when these options are disabled.

# 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=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. 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 !!

#local_root=/data

pam_service_name=vsftpd

userlist_enable=YES

tcp_wrappers=YES

allow_writeable_chroot=YES