centos搭建ftp服务器

编程

先参考这个文章:https://www.cnblogs.com/Crazy-Liu/p/12925180.html

再参考这个文章:https://zhuanlan.zhihu.com/p/126631566

不能登陆参考这个文章:https://blog.csdn.net/wlchn/article/details/50855447

今天想在自己vps上搭建一个ftp服务(默认21端口)、并且不允许匿名访问,毕竟允许匿名等于裸奔。

环境

本机:

[root@VM-0-3-centos ~]# cat /etc/redhat-release

CentOS Linux release 7.6.1810 (Core)

[root@VM-0-3-centos ~]# uname -a

Linux VM-0-3-centos 3.10.0-1127.19.1.el7.x86_64 #1 SMP Tue Aug 25 17:23:54 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

本机没有安装过vsftpd

vsftpd 是“very secure FTP daemon”的缩写,安全性是它的一个最大的特点。

vsftpd 是一个 UNIX 类操作系统上运行的服务器的名字,它可以运行在诸如 Linux、BSD、Solaris、 HP-UNIX等系统上面,是一个完全免费的、开放源代码的ftp服务器软件,支持很多其他的 FTP 服务器所不支持的特征。

比如:非常高的安全性需求、带宽限制、良好的可伸缩性、可创建虚拟用户、支持IPv6、速率高等。

vsftpd是一款在Linux发行版中最受推崇的FTP服务器程序。特点是小巧轻快,安全易用。

安装软件

[root@Sungeek ~]# yum -y install vsftpd

[root@VM-0-3-centos vsftpd]# vsftpd -version

vsftpd: version 3.0.2

更改配置

[root@Sungeek ~]# cd /etc/vsftpd 

[root@Sungeek ~]# vim vsftpd.conf

这个大佬写的介绍各个参数的可以自己去看吧:https://www.cnblogs.com/Crazy-Liu/p/12925180.html

我直接把我的配置文件给粘贴出来吧:

[root@VM-0-3-centos vsftpd]# cat vsftpd.conf

# 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=NO

#

# Uncomment this to allow local users to log in.

# When SELinux is enforcing check for SE bool ftp_home_dir

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.

# When SELinux is enforcing check for SE bool allow_ftpd_anon_write, allow_ftpd_full_access

#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

#

# Activate logging of uploads/downloads.

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

#

# You may override where the log file goes if you like. The default is shown

# below.

#xferlog_file=/var/log/xferlog

#

# If you want, you can have your log file in standard ftpd xferlog format.

# Note that the default log file location is /var/log/xferlog in this case.

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. The vsftpd.conf(5) man page explains

# the behaviour when these options are disabled.

# 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 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().

# (Warning! chroot"ing can be very dangerous. If using chroot, make sure that

# the user does not have write access to the top level directory within the

# chroot)

chroot_local_user=YES

chroot_list_enable=NO

# (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 span 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.

userlist_deny=NO

userlist_file=/etc/vsftpd/user_list

listen=NO

#

# This directive enables listening on IPv6 sockets. By default, listening

# on the IPv6 "any" address (::) will accept connections from both IPv6

# and IPv4 clients. It is not necessary to listen on *both* IPv4 and IPv6

# sockets. If you want that (perhaps because you want to listen on specific

# addresses) then 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

tcp_wrappers=YES

allow_writeable_chroot=YES

local_root=/data/ftp/

其中的local_root=/data/ftp/是我放置ftp文件的地方,记得新建:

新建FTP目录

创建的FTP目录如下:

cd /data & mkdir ftp

防火墙添加FTP服务

firewall-cmd --permanent --zone=public --add-service=ftp firewall-cmd --reload

我的VPS 防火墙已关闭,且腾讯云安全组已经设置为全通了 : ) ............

创建新用户

创建用户:(ftpuser_xxx可以替换为任意合法用户名)

[root@Sungeek vsftpd]# useradd -d /data/ftp/ -s /sbin/nologin ftpuser_xxx

设置密码:

[root@Sungeek vsftpd]# passwd ftpuser_xxx

然后根据提示设置密码,密码就自己设置吧

设置访问权限:

[root@Sungeek vsftpd]# chown -R ftpuser_xxx /data/ftp

然后配置登录用户

这个文件里我就写了ftpuser_xxx这几个字,不知道有用没,大概率没有,可以先不写试试:

vim /etc/vsftpd.chroot_list

这个文件里加入你新建的ftpuser_xxx:

vim /etc/vsftpd/user_list

密码错误:修复方式(不一定需要,如果可以正常用就不要这个,不太懂这个是啥意思)

vim /etc/pam.d/vsftpd 注释掉(加#号):#auth required pam_shells.so

重启vsftpd

设置开机启动:

systemctl enable vsftpd.service

启动vsftpd服务

systemctl start vsftpd.service

哈哈成功:

以上是 centos搭建ftp服务器 的全部内容, 来源链接: utcz.com/z/519678.html

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