CentOS安装配置VSFTP服务器详解程序员

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前言

本文用最简单的方式创建FTP服务，即创建一个大家都可以访问的目录，没有涉及到各种权限限制。

创建目录

在安装配置ftp之前，首先创建一个目录，用来做ftp根目录。我创建的是/home/ftp。创建之后，给ftp赋予权限，命令如下：

#mkdir /home/ftp 
#chown -R ftp /home/ftp 
#chgrp -R ftp /home/ftp 
#chmod -R 777 /home/ftp 

安装VSFTP并设为开机启动

直接用yum安装

yum -y install vsftpd 
chkconfig vsftpd on 

配置vsftpd.conf文件

vsftpd.conf是最重要的配置文件

#vim /etc/vsftpd/vsftpd.conf 

里面内容如下：

# 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=YES  
#  
# Uncomment this to allow local users to log in.  
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.  
#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  
#  
# The target log file can be vsftpd_log_file or xferlog_file.  
# This depends on setting xferlog_std_format parameter  
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  
#  
# 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.  
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 lightnear 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  
#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. 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=YES  
userlist_deny=NO  
local_root=/var/ftp 
tcp_wrappers=YES 
 
use_localtime=YES 

增加ftp账户

#useradd chzhao -s /sbin/nologin 
#passwd chzhao 

编辑user_list文件

注意，vsftpd.conf里面的userlist_deny=NO 必须设置

[[email protected] ~]# vi /etc/vsftpd/user_list 
# vsftpd userlist 
# If userlist_deny=NO, only allow users in this file 
# If userlist_deny=YES (default), never allow users in this file, and 
# do not even prompt for a password. 
# Note that the default vsftpd pam config also checks /etc/vsftpd/ftpusers 
# for users that are denied. 
root 
bin 
daemon 
adm 
lp 
sync 
shutdown 
halt 
mail 
news 
uucp 
operator 
games 
nobody 
chzhao 

开启服务

#service vsftpd restart