CenOS_6.6_简单搭建vsFTP

0. 关闭selinux

永久性关闭（这样需要重启服务器后生效）
sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config
临时性关闭（立即生效，但是重启服务器后失效）
setenforce 0 #设置selinux为permissive模式（即关闭）
setenforce 1 #设置selinux为enforcing模式（即开启）

1. 查看是否安装

rpm -qa | grep vsftp

2. 安装vsftp

yum install vsftpd -y

3. 修改主配置文件

# 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.
#
# 是否允许匿名登录FTP服务器，默认设置为YES（允许）
anonymous_enable=NO
#
# 是否允许本地用户登录FTP服务器，默认设置为YES（允许）
local_enable=YES
#
# 是否允许用户（匿名用户、本地用户）对FTP服务器具有写权限，默认设置为YES（允许）
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)
# 设置本地用户的文件生成掩码，默认为022
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.
# 是否允许匿名用户上传文件，默认设置为YES（允许）。
#anon_upload_enable=YES
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
# 是否允许匿名用户创建新文件夹。默认设置为YES（允许）
#anon_mkdir_write_enable=YES
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.
# 是否激活目录欢迎信息功能，当用户首次访问服务器上的某个目录时，FTP服务器将显示欢迎信息。默认情况下，欢迎信息是通过目录下的.message文件获得的
dirmessage_enable=YES
#
# The target log file can be vsftpd_log_file or xferlog_file.
# This depends on setting xferlog_std_format parameter
# 是否启用上传和下载记录日志的功能
xferlog_enable=YES
# 在FTP服务器中设置欢迎登录信息。当用户登录到FTP服务器后，会看到欢迎细信息“Welcome to blah FTP service.”
ftpd_banner=Welcome to blah FTP service
#
# 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.
# 如果用户在600秒内没有命令操作，强制脱机，避免占用资源
idle_session_timeout=600
#
# You may change the default value for timing out a data connection.
# 如果服务器和客户端的数据连接已经成功建立，但是可能由于线路问题导致在120秒内还是无法顺利地完成数据的传送，客户端的连接就会被vsftpd强制剔除
#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.
# 当设置为YES时，表示允许使用ASCII方式上传和下载文件
#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
#是否锁定根目录（只能在指定给自己的目录下做为根目录）
#每行写FTP用户名就行
chroot_list_enable=YES
#允许写入
#allow_writeable_chroot=YES
# (default follows)
# 锁定FTP用户在自己目录下面，不写入的话有可能会直接显示根目录!
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.
# 当设置为YES时，则vsftpd将以独立模式运行，由vsftpd自己监听和处理连接请求
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=NO时ftpusers文件中的用户将禁止访问FTP服务器。因此ftpusers文件又被称为“禁止使用vsftpd的用户列表文件”
userlist_enable=YES
# 当userlist_enable为YES，userlist_deny为NO时，FTP服务器仅允许user_list中的用户访问
# 当userlist_enable为YES，userlist_deny为YES时，ftpusers和user_list文件中的用户均不能访问FTP服务器
# userlist_deny
tcp_wrappers=YES
#用来存放每个需要独立的FTP用户的配置
user_config_dir=/etc/vsftpd/userconfig
#centos7 开启
#allow_writeable_chroot=YES

备份原配置文件后直接复制即可，创建虚拟用户

vim /etc/vsftpd/chroot_list
ftpuser

4. 指定用户根目录

mkdir /etc/vsftpd/userconfig
echo local_root=/var/ftp/ftpuser > /etc/vsftpd/userconfig/ftpuser

5. 创建用户

useradd -s /sbin/nologin -g ftp ftpuser && echo 你的密码 | passwd --stdin ftpuser

6. 创建用户FTP所能管理的目录

mkdir /var/ftp/ftpuser
#把所建的目录给相应的账号主权限
chown -R ftpuser:ftp /var/ftp/ftpuser

7. 关闭防火墙

# 注意linux的版本
 
# CentOs 6
# 查看防火墙是否开启
service iptables status
# 临时关闭防火墙
servcie iptables stop
# 永久性关闭防火墙
service iptables off
 
# CentOs 7+
# 查看防火墙是否开启
firewall-cmd --state
#临时关闭防火墙
systemctl stop firewalld.service
#永久关闭防火墙（重启生效）
systemctl disable firewalld.service

8. 启动VSFTP服务

service vsftpd start