【求助】新版vsftp的chroot设置问题

[szfhx]

一直用的vsftpd作为ftp服务器，最近升级了一下ubuntu系统，vsftpd版本升为 2.3.5-1 ， 然后用原来的配置文件，结果发现登陆的时候出现问题：500 OOPS: vsftpd: refusing to run with writable root inside chroot()
意思是，如果开启了chroot来控制用户路径，则用户不能再具有该用户根目录的写的权限。
解决办法1：
去掉该用户根目录的写的权限，再新建一目录，以后用新目录
#sudo chmod a-w /home/用户名
#sudo mkdir /home/用户名/新目录名
其实很不方便，用户登陆进去会发现必须要再进一层目录才能找到自己的文件

如果非要保证ftp用户根目录可写，
解决办法2：
在vsftpd.chroot_list上写进去我们不要限制的用户，其他用户则不让他们“漂移”。一个用户名一行
sudo vim /etc/vsftpd.chroot_list
但这样也有风险，这个ftp用户可以去浏览系统其它目录了，失去了chroot设置意义了。

有没有更好的办法，既能使用chroot功能，又能不去掉该用户根目录的写的权限？

[szfhx]

下面是vsftpd.conf文件部分内容

sudo vim /etc/vsftpd.conf
#独立模式启动（默认不用改）
listen=YES
#不让匿名用户使用（默认，以前版本找到并修改为NO）
anonymous_enable=NO
#本地用户可用（默认，以前版本找到并去掉注释）
local_enable=YES
#可用写操作 （去掉注释）
write_enable=YES
#不想上传后的文件执行（找到并去掉注释）
local_umask=022
#不需要显示某目录下文件信息 （找到并注释）
#dirmessage_enable=YES
#本地所有帐户都只能在自家目录登录 （有两处这句话，去掉注释）
chroot_local_user=yes
#启动chroot列表(Change root) （去掉注释）
chroot_list_enable=YES
#指定列表位置(我这用的是默认地址) （去掉注释）
chroot_list_file=/etc/vsftpd.chroot_list

[meditation]

allow_writeable_chroot=YES

[szfhx]

allow_writeable_chroot=YES

大侠：试了添加这句后，登录不进去了，请帮我看看
错误提示：500 OOPS: unrecognised variable in config file: allow_writeable_chroot

以下是原来/etc/vsftpd.conf文件内容：

# 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? (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=No
#
# 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=whoever
#
# 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().
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
#
#
# Debian customization
#
# Some of vsftpd's settings don't fit the Debian filesystem layout by
# default. These settings are more Debian-friendly.
#
# 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
#FTP服务器最大承载用户（以下要添加）
max_clients=10
#限制每个IP的进程
max_per_ip=5
local_max_rate=10240000
#隐藏帐号
hide_ids=YES
#给用户设置单独的权限
user_config_dir=/etc/vsftpd
#ssl_enable=yes
#rsa_cert_file=/etc/vsftpd/vsftpd.pem

[meditation]

试试这个
http://www.garron.me/bits/500-oops-vsft ... olved.html

[szfhx]

试试这个
http://www.garron.me/bits/500-oops-vsft ... olved.html

配置文件加上：
local_root=/home/$USER/

出现：
500 OOPS: cannot change directory:/home/$USER/

还是不行啊

[bitbone]

正确的是：

代码： 全选

allow_writable_root=YES

allow_writeable_chroot=YES

大侠：试了添加这句后，登录不进去了，请帮我看看
错误提示：500 OOPS: unrecognised variable in config file: allow_writeable_chroot

以下是原来/etc/vsftpd.conf文件内容：

# 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? (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=No
#
# 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=whoever
#
# 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().
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
#
#
# Debian customization
#
# Some of vsftpd's settings don't fit the Debian filesystem layout by
# default. These settings are more Debian-friendly.
#
# 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
#FTP服务器最大承载用户（以下要添加）
max_clients=10
#限制每个IP的进程
max_per_ip=5
local_max_rate=10240000
#隐藏帐号
hide_ids=YES
#给用户设置单独的权限
user_config_dir=/etc/vsftpd
#ssl_enable=yes
#rsa_cert_file=/etc/vsftpd/vsftpd.pem

[supervinay]

新版本的就是垃圾。我也遇到好多问题。。

[糖衣炮弹]

楼主确定这两种方法可行么?我这咋怎么搞都提示这样的错误,ubuntu server lts 12.04

一直用的vsftpd作为ftp服务器，最近升级了一下ubuntu系统，vsftpd版本升为 2.3.5-1 ， 然后用原来的配置文件，结果发现登陆的时候出现问题：500 OOPS: vsftpd: refusing to run with writable root inside chroot()
意思是，如果开启了chroot来控制用户路径，则用户不能再具有该用户根目录的写的权限。
解决办法1：
去掉该用户根目录的写的权限，再新建一目录，以后用新目录
#sudo chmod a-w /home/用户名
#sudo mkdir /home/用户名/新目录名
其实很不方便，用户登陆进去会发现必须要再进一层目录才能找到自己的文件

如果非要保证ftp用户根目录可写，
解决办法2：
在vsftpd.chroot_list上写进去我们不要限制的用户，其他用户则不让他们“漂移”。一个用户名一行
sudo vim /etc/vsftpd.chroot_list
但这样也有风险，这个ftp用户可以去浏览系统其它目录了，失去了chroot设置意义了。

有没有更好的办法，既能使用chroot功能，又能不去掉该用户根目录的写的权限？

[DruidFY]

楼主确定这两种方法可行么?我这咋怎么搞都提示这样的错误,ubuntu server lts 12.04

一直用的vsftpd作为ftp服务器，最近升级了一下ubuntu系统，vsftpd版本升为 2.3.5-1 ， 然后用原来的配置文件，结果发现登陆的时候出现问题：500 OOPS: vsftpd: refusing to run with writable root inside chroot()
意思是，如果开启了chroot来控制用户路径，则用户不能再具有该用户根目录的写的权限。
解决办法1：
去掉该用户根目录的写的权限，再新建一目录，以后用新目录
#sudo chmod a-w /home/用户名
#sudo mkdir /home/用户名/新目录名
其实很不方便，用户登陆进去会发现必须要再进一层目录才能找到自己的文件

如果非要保证ftp用户根目录可写，
解决办法2：
在vsftpd.chroot_list上写进去我们不要限制的用户，其他用户则不让他们“漂移”。一个用户名一行
sudo vim /etc/vsftpd.chroot_list
但这样也有风险，这个ftp用户可以去浏览系统其它目录了，失去了chroot设置意义了。

有没有更好的办法，既能使用chroot功能，又能不去掉该用户根目录的写的权限？

你可能需要修改新目录属主

[crystaldust]

是这样的，Ubuntu下面的vsftpd已经不支持具有写属性的root目录了。另外，其他的系统如果支持（我用的gentoo，就可以让root目录具有写属性），设置项是allow_writetable_chroot=YES，如果是vsftpd-ext（扩展版），那么设置项就是allow_writable_chroot=YES（不知道是不是作者的拼写错误，呵呵）。