CentOS安装配置VSFTP服务器

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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

[root@localhost ~]# 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