CenOS_6.6_簡單搭建vsFTP

0. 關閉selinux

永久性關閉（這樣須要重啓服務器後生效）
sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config
臨時性關閉（當即生效，可是重啓服務器後失效）
setenforce 0 #設置selinux爲permissive模式（即關閉）
setenforce 1 #設置selinux爲enforcing模式（即開啓）

1. 查看是否安裝

rpm -qa | grep vsftp

2. 安裝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.
#
# 是否容許匿名登陸FTP服務器，默認設置爲YES（容許）
anonymous_enable=NO
#
# 是否容許本地用戶登陸FTP服務器，默認設置爲YES（容許）
local_enable=YES
#
# 是否容許用戶（匿名用戶、本地用戶）對FTP服務器具備寫權限，默認設置爲YES（容許）
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)
# 設置本地用戶的文件生成掩碼，默認爲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.
# 是否容許匿名用戶上傳文件，默認設置爲YES（容許）。
#anon_upload_enable=YES
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
# 是否容許匿名用戶建立新文件夾。默認設置爲YES（容許）
#anon_mkdir_write_enable=YES
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.
# 是否激活目錄歡迎信息功能，當用戶首次訪問服務器上的某個目錄時，FTP服務器將顯示歡迎信息。默認狀況下，歡迎信息是經過目錄下的.message文件得到的
dirmessage_enable=YES
#
# The target log file can be vsftpd_log_file or xferlog_file.
# This depends on setting xferlog_std_format parameter
# 是否啓用上傳和下載記錄日誌的功能
xferlog_enable=YES
# 在FTP服務器中設置歡迎登陸信息。當用戶登陸到FTP服務器後，會看到歡迎細信息「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.
# 若是用戶在600秒內沒有命令操做，強制脫機，避免佔用資源
idle_session_timeout=600
#
# You may change the default value for timing out a data connection.
# 若是服務器和客戶端的數據鏈接已經成功創建，可是可能因爲線路問題致使在120秒內仍是沒法順利地完成數據的傳送，客戶端的鏈接就會被vsftpd強制剔除
#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.
# 當設置爲YES時，表示容許使用ASCII方式上傳和下載文件
#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
#是否鎖定根目錄（只能在指定給本身的目錄下作爲根目錄）
#每行寫FTP用戶名就行
chroot_list_enable=YES
#容許寫入
#allow_writeable_chroot=YES
# (default follows)
# 鎖定FTP用戶在本身目錄下面，不寫入的話有可能會直接顯示根目錄!
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.
# 當設置爲YES時，則vsftpd將以獨立模式運行，由vsftpd本身監聽和處理鏈接請求
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時ftpusers文件中的用戶將禁止訪問FTP服務器。所以ftpusers文件又被稱爲「禁止使用vsftpd的用戶列表文件」
userlist_enable=YES
# 當userlist_enable爲YES，userlist_deny爲NO時，FTP服務器僅容許user_list中的用戶訪問
# 當userlist_enable爲YES，userlist_deny爲YES時，ftpusers和user_list文件中的用戶均不能訪問FTP服務器
# userlist_deny
tcp_wrappers=YES
#用來存放每一個須要獨立的FTP用戶的配置
user_config_dir=/etc/vsftpd/userconfig
#centos7 開啓
#allow_writeable_chroot=YES

備份原配置文件後直接複製便可，建立虛擬用戶

vim /etc/vsftpd/chroot_list
ftpuser

4. 指定用戶根目錄

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

5. 建立用戶

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

6. 建立用戶FTP所能管理的目錄

mkdir /var/ftp/ftpuser
#把所建的目錄給相應的帳號主權限
chown -R ftpuser:ftp /var/ftp/ftpuser

7. 關閉防火牆

# 注意linux的版本

# CentOs 6 
# 查看防火牆是否開啓
service iptables status
# 臨時關閉防火牆
servcie iptables stop
# 永久性關閉防火牆
service iptables off

# CentOs 7+ 
# 查看防火牆是否開啓
firewall-cmd --state
#臨時關閉防火牆
systemctl stop firewalld.service
#永久關閉防火牆（重啓生效）
systemctl disable firewalld.service 

8. 啓動VSFTP服務

service vsftpd start