ubutu14.04下ftp服务器搭建

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FTP服务器的搭建，我要实现的需求是：

　　(1）不允许匿名访问，因为我的机器不想让谁都能登录上来，随便获取文件，

　　(2）需要锁定一个目录

　　(3）需要本机也能访问，因为我要做一些关于FTP的测试。

　    (4）不单独建立FTP用户，FTP也使用ubuntu桌面的用户进行登录和操作，

好了 我们开始安装，很简单。

1.下载安装ftp服务器软件包

apt-get install vsftpd

#如果以前安装了可以卸载

apt-get purge vsftpd

2.配置/etc/vsftpd.conf

cd /etc

备份：

cp /etc/vsftpd.conf    /etc/vsftpd.conf.old

配置:

vi /etc/vsftpd.conf

(1）不允许匿名访问，因为我的机器不想让谁都能登录上来，随便获取文件，

23 anonymous_enable=NO

(2）需要锁定一个目录

152 local_root=/home/ftpserver    (新建的专有的ftp目录)

(3）需要本机也能访问，因为我要做一些关于FTP的测试。

local_enable = YES

(4）不单独建立FTP用户，FTP也使用ubuntu桌面的用户进行登录和操作，

chroot_list_enable=YES

chroot_list_file=/etc/vsftpd.chroot_list

这里需要/etc/vsftpd.chroot_list 这个文件，如果没有请新建：

　　sudo gedit /etc/vsftpd.chroot_list

　　内容如下（例如我桌面的用户名为yangtq）：

        其实就是把你的用户名写进去

贴出我的配置文件。

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# Example config file /etc/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.

#

#

# Run standalone?  vsftpd can run either from an inetd or as a standalone

# daemon started from an initscript.

listen=YES

#

# Run standalone with IPv6?

# Like the listen parameter, except vsftpd will listen on an IPv6 socket

# instead of an IPv4 one. This parameter and the listen parameter are mutually

# exclusive.

#listen_ipv6=YES

#

# Allow anonymous FTP? (Disabled by default)

anonymous_enable=YES

anon_root=/home/ftpserver

#

# Uncomment this to allow local users to log in.

local_enable=YES

local_root=/home/ftpserver

#

# 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

no_anon_password=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

#

# If enabled, vsftpd will display directory listings with the time

# in  your  local  time  zone.  The default is to display GMT. The

# times returned by the MDTM FTP command are also affected by this

# option.

#use_localtime=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=root

#

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

# below.

#xferlog_file=/var/log/vsftpd.log

#

# 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.

# 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 restrict local users to their home directories.  See the FAQ for

# the possible risks in this before using chroot_local_user or

# chroot_list_enable below.

#chroot_local_user=YES

#

# 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=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

#

# Customization

#

# Some of vsftpd's settings don't fit the filesystem layout by

# default.

#

# This option should be the name of a directory which is empty.  Also, the

# directory should not be writable by the ftp user. This directory is used

# as a secure chroot() jail at times vsftpd does not require filesystem

# access.

secure_chroot_dir=/var/run/vsftpd/empty

#

# This string is the name of the PAM service vsftpd will use.

pam_service_name=vsftpd

#

# This option specifies the location of the RSA certificate to use for SSL

# encrypted connections.

rsa_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem

# This option specifies the location of the RSA key to use for SSL

# encrypted connections.

rsa_private_key_file=/etc/ssl/private/ssl-cert-snakeoil.key

#listen_port=8021

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接下来重启vsftp服务器：

yangtq@yangtq-To-be-filled-by-O-E-M:~$ sudo service vsftpd restart

vsftpd stop/waiting

vsftpd start/running, process 22857

yangtq@yangtq-To-be-filled-by-O-E-M:~$

下面直接访问FTP 看看：

yangtq@yangtq-To-be-filled-by-O-E-M:~$ ftp 127.0.0.1（192.168.1.110(本机ip））

Connected to 127.0.0.1.

Please specify the password.

Password:

OOPS: vsftpd: refusing to run with writable root inside chroot()

Login failed.

Service not available, remote server has closed connection

ftp>

居然报了一个500的错误

vsftpd: refusing to run with writable root inside chroot()

。其实这里是需要特殊说明的，原因出在这里

120 #chroot_local_user=YES

121 chroot_list_enable=YES

122 # (default follows)

123 chroot_list_file=/etc/vsftpd.chroot_list

我们用

chroot_list_enable=YES 和 chroot_list_file=/etc/vsftpd.chroot_list配合使用，使得只有在vsftpd.chroot_list中配置的用户才能登录FTP。

对于这要的配置有一个特殊的要求，就是vsftpd.chroot_list里面配置的用户，对于前面local_root配置的目录不能有写的权限！

也就是/home/ftpserver 这个文件夹 对于yangtq这个用户不能有写的权限，

我们为了额操作方便可以这么做：

 sudo chown -R root:root /home/ftpserver

这样，yangtq这个用户对于/home/ftpserver没有写权限了，

现在重启FTP 重新登录看看：

yangtq@yangtq-To-be-filled-by-O-E-M:~$ ftp 127.0.0.1

Connected to 127.0.0.1.

Please specify the password.

Password:

Login successful.

Remote system type is UNIX.

Using binary mode to transfer files.

ftp>

OK  FTP 好了 可以登录了

也可以在浏览器上输入ftp://127.0.0.1(192.168.1.118)登陆和操作，更多操作请参考其他配置或者我的另一篇文章。