【转】CentOS中vsftp安装、配置、卸载

1. 安装VSFTP

 yum -y install vsftpd

2. 配置vsftpd.conf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. for all compiled in defaults.
 #
 # READ THIS: This example file is NOT an exhaustive list of vsftpd options.
 # Please read the vsftpd.conf. 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 . You may wish to change this to ,
 #  is used by most other ftpd's)
 local_umask=
 #
 # 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  (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=
 #
 # You may change the default value for timing out a data connection.
 data_connection_timeout=
 #
 # 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/public_root
 tcp_wrappers=YES
 use_localtime=YES

3. 增加FTP帐户

这里设置的账户名为“objectyan”,密码为“objectyan”

 [root@localhost ~]# useradd objectyan -s /sbin/nologin
 [root@localhost ~]# passwd objectyan

4. 编辑user_list文件，允许objectyan用户访问FTP

 [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
 objectyan

5. 建立我们的根目录，并设置访问权限

 [root@localhost ~]# mkdir /var/public_root
 [root@localhost ~]# chown -R objectyan /var/public_root
 [root@localhost ~]#  /var/public_root

6. 开启vsftpd服务

 [root@localhost ~]# service vsftpd start

7.默认开启vsftp服务

 [root@localhost var]# chkconfig vsftpd on

centos 卸载vsftpd方法

　　如果服务器上安装了vsftpd，配置出错需要卸载vsftpd

 [root@localhost ~]# rpm -aq vsftpd

　　vsftpd-2.0.5-16.el5_5.1 #此处是查找vsftpd的返回结果

 [root@localhost ~]# rpm -e vsftpd--.el5_5.

　　#用rpm -e 查找结果 进行删除就ok了。
　　warning: /etc/vsftpd/user_list saved as /etc/vsftpd/user_list.rpmsave
　　warning: /etc/vsftpd/ftpusers saved as /etc/vsftpd/ftpusers.rpmsave #删除时将备份vsftp的用户列表文件。