CentOS中vsftp安装、配置、卸载_centos 7 ftp 卸载

#1. 安装VSFTP

yum -y install vsftpd
#2. 配置vsftpd.conf文件
vi /etc/vsftpd/vsftpd.con

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/public_root tcp_wrappers=YES
use_localtime=YES

#3. 增加FTP帐户
这里设置的账户名为“cent”,密码为“cent”

[root@localhost ~]# useradd cent -s /sbin/nologin
 [root@localhost ~]# passwd cent
1
2

#4. 编辑user_list文件，允许cent用户访问FTP
vi /etc/vsftpd/user_list //在文件中加入允许访问的用户
#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 cent /var/public_root
[root@localhost ~]# chmod -R 755 /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-2.0.5-16.el5_5.1
#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。
#看下是否卸载了vsftpd，进行stop及start操作：
[root@localhost ~]# /sbin/service vsftpd stop
vsftpd: unrecognized service #找不到vsftpd
[root@localhost ~]# /sbin/service vsftpd start
vsftpd: unrecognized service #找不到vsftpd记住，在卸载vsftpd之前，先停止vsftpd