[Others] smb文件共享默认开启用户主目录共享???
Tofloor
poster avatar
charm
deepin
2025-01-03 09:53
Author

今天需要使用smb来共享文件,突然发现一直困惑了我很久的网络邻居里的主机名是干啥的,好家伙,不仅把我卖了,还很彻底,局域网底下,无需密码,即可直接访问用户 主目录,没经过允许开放也就算了,还不需要密码,不需要密码也就算了,还没与关闭选择?`no
image.png

image.png



经过反复尝试,在初次访问smb:\*****时,会出现 共享的目录nobody 两者均需要账号密码,在初次登陆共享目录之后,会出现 主目录共享的目录 两者均不需要再输入密码.

因此,现在的问题是,虽然有一道密码做防护,但是我只授权了 共享文件夹而没有授权共享 用户主目录

这是否算是一个安全问题呢

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[^_^]
deepin developers team
2025-01-03 13:12
#1

deepin 默认的环境肯定不会默认共享用户主目录。自己看下 /etc/samba/smb.conf 配置里面是不是有把 Home 暴露出去。

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expskywalker
deepin
2025-01-03 13:48
#2

smb.conf默认home目录是不可浏览状态而且只读。测试windows网上邻居找不到任何linux桌面主机。

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ycscg
deepin
2025-01-08 09:08
#3
[^_^]

deepin 默认的环境肯定不会默认共享用户主目录。自己看下 /etc/samba/smb.conf 配置里面是不是有把 Home 暴露出去。

确实会自动共享主目录,我新装的V23也是这样,同时共享出来的还有个print$目录,也没地方选择关闭,不过需要用户名和密码才能进入共享,但这样也是个bug啊(注:我是在华为手机上用文件管理器发现这个共享bug的)

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deepin developers team
2025-01-08 10:47
#4
ycscg

确实会自动共享主目录,我新装的V23也是这样,同时共享出来的还有个print$目录,也没地方选择关闭,不过需要用户名和密码才能进入共享,但这样也是个bug啊(注:我是在华为手机上用文件管理器发现这个共享bug的)

可以贴一下 /etc/samba/smb.conf 这个配置文件。

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ycscg
deepin
2025-01-09 09:45
#5
[^_^]

可以贴一下 /etc/samba/smb.conf 这个配置文件。

Sample configuration file for the Samba suite for Debian GNU/Linux.

This is the main Samba configuration file. You should read the

smb.conf(5) manual page in order to understand the options listed

here. Samba has a huge number of configurable options most of which

are not shown in this example

Some options that are often worth tuning have been included as

commented-out examples in this file.

- When such options are commented with ";", the proposed setting

differs from the default Samba behaviour

- When commented with "#", the proposed setting is the default

behaviour of Samba but the option is considered important

enough to be mentioned here

NOTE: Whenever you modify this file you should run the command

"testparm" to check that you have not made any basic syntactic

errors.

#======================= Global Settings =======================

[global]

Browsing/Identification

Change this to the workgroup/NT-domain name your Samba server will part of

workgroup = WORKGROUP

Networking

The specific set of interfaces / networks to bind to

This can be either the interface name or an IP address/netmask;

interface names are normally preferred

; interfaces = 127.0.0.0/8 eth0

Only bind to the named interfaces and/or networks; you must use the

'interfaces' option above to use this.

It is recommended that you enable this feature if your Samba machine is

not protected by a firewall or is a firewall itself. However, this

option cannot handle dynamic or non-broadcast interfaces correctly.

; bind interfaces only = yes

Debugging/Accounting

This tells Samba to use a separate log file for each machine

that connects

log file = /var/log/samba/log.%m

Cap the size of the individual log files (in KiB).

max log size = 1000

We want Samba to only log to /var/log/samba/log..

Append syslog@1 if you want important messages to be sent to syslog too.

logging = file

Do something sensible when Samba crashes: mail the admin a backtrace

panic action = /usr/share/samba/panic-action %d

####### Authentication #######

Server role. Defines in which mode Samba will operate. Possible

values are "standalone server", "member server", "classic primary

domain controller", "classic backup domain controller", "active

directory domain controller".

Most people will want "standalone server" or "member server".

Running as "active directory domain controller" will require first

running "samba-tool domain provision" to wipe databases and create a

new domain.

server role = standalone server

obey pam restrictions = yes

This boolean parameter controls whether Samba attempts to sync the Unix

password with the SMB password when the encrypted SMB password in the

passdb is changed.

unix password sync = yes

For Unix password sync to work on a Debian GNU/Linux system, the following

parameters must be set (thanks to Ian Kahan < for

sending the correct chat script for the passwd program in Debian Sarge).

passwd program = /usr/bin/passwd %u
passwd chat = Enter\snew\s\spassword:* %n\n Retype\snew\s\spassword:* %n\n password\supdated\ssuccessfully .

This boolean controls whether PAM will be used for password changes

when requested by an SMB client instead of the program listed in

'passwd program'. The default is 'no'.

pam password change = yes

This option controls how unsuccessful authentication attempts are mapped

to anonymous connections

map to guest = bad user

########## Domains ###########

The following settings only takes effect if 'server role = classic

primary domain controller', 'server role = classic backup domain controller'

or 'domain logons' is set

It specifies the location of the user's

profile directory from the client point of view) The following

required a [profiles] share to be setup on the samba server (see

below)

; logon path = \%N\profiles%U

Another common choice is storing the profile in the user's home directory

(this is Samba's default)

logon path = \%N%U\profile

The following setting only takes effect if 'domain logons' is set

It specifies the location of a user's home directory (from the client

point of view)

; logon drive = H:

logon home = \%N%U

The following setting only takes effect if 'domain logons' is set

It specifies the script to run during logon. The script must be stored

in the [netlogon] share

NOTE: Must be store in 'DOS' file format convention

; logon script = logon.cmd

This allows Unix users to be created on the domain controller via the SAMR

RPC pipe. The example command creates a user account with a disabled Unix

password; please adapt to your needs

; add user script = /usr/sbin/useradd --create-home %u

This allows machine accounts to be created on the domain controller via the

SAMR RPC pipe.

The following assumes a "machines" group exists on the system

; add machine script = /usr/sbin/useradd -g machines -c "%u machine account" -d /var/lib/samba -s /bin/false %u

This allows Unix groups to be created on the domain controller via the SAMR

RPC pipe.

; add group script = /usr/sbin/addgroup --force-badname %g

############ Misc ############

Using the following line enables you to customise your configuration

on a per machine basis. The %m gets replaced with the netbios name

of the machine that is connecting

; include = /home/samba/etc/smb.conf.%m

Some defaults for winbind (make sure you're not using the ranges

for something else.)

; idmap config * : backend = tdb
; idmap config * : range = 3000-7999
; idmap config YOURDOMAINHERE : backend = tdb
; idmap config YOURDOMAINHERE : range = 100000-999999
; template shell = /bin/bash

Setup usershare options to enable non-root users to share folders

with the net usershare command.

Maximum number of usershare. 0 means that usershare is disabled.

usershare max shares = 100

Allow users who've been granted usershare privileges to create

public shares, not just authenticated ones

usershare allow guests = yes

#======================= Share Definitions =======================

[homes]
comment = Home Directories
browseable = no

By default, the home directories are exported read-only. Change the

next parameter to 'no' if you want to be able to write to them.

read only = yes

File creation mask is set to 0700 for security reasons. If you want to

create files with group=rw permissions, set next parameter to 0775.

create mask = 0700

Directory creation mask is set to 0700 for security reasons. If you want to

create dirs. with group=rw permissions, set next parameter to 0775.

directory mask = 0700

By default, \server\username shares can be connected to by anyone

with access to the samba server.

The following parameter makes sure that only "username" can connect

to \server\username

This might need tweaking when using external authentication schemes

valid users = %S

Un-comment the following and create the netlogon directory for Domain Logons

(you need to configure Samba to act as a domain controller too.)

;[netlogon]
; comment = Network Logon Service
; path = /home/samba/netlogon
; guest ok = yes
; read only = yes

Un-comment the following and create the profiles directory to store

users profiles (see the "logon path" option above)

(you need to configure Samba to act as a domain controller too.)

The path below should be writable by all users so that their

profile directory may be created the first time they log on

;[profiles]
; comment = Users profiles
; path = /home/samba/profiles
; guest ok = no
; browseable = no
; create mask = 0600
; directory mask = 0700

[printers]
comment = All Printers
browseable = no
path = /var/tmp
printable = yes
guest ok = no
read only = yes
create mask = 0700

Windows clients look for this share name as a source of downloadable

printer drivers

[print$]
comment = Printer Drivers
path = /var/lib/samba/printers
browseable = yes
read only = yes
guest ok = no

Uncomment to allow remote administration of Windows print drivers.

You may need to replace 'lpadmin' with the name of the group your

admin users are members of.

Please note that you also need to set appropriate Unix permissions

to the drivers directory for these users to have write rights in it

; write list = root, @lpadmin

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[^_^]
deepin developers team
2025-01-09 09:56
#6

主目录确实是被共享出来了,通过 linux 系统看不到,其他的手机上的 smb 访问协议可能忽略了 browseable 字段为 no 的设定所以依然能看到这个主目录。我看看这个配置是不是上游默认的选项。
image.png

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ycscg
deepin
2025-01-09 09:58
#7
[^_^]

可以贴一下 /etc/samba/smb.conf 这个配置文件。

下图是手机MX播放器连接电脑后显示的共享目录,中间的那个systemp是我在电脑上手动设置的共享目录,上面那个print$目录和我的用户主目录ycscg是系统自己共享出来的,我想linux是主打网络的操作系统,本来就可以网络远程登陆的,通过网络登陆到deepin,那当然就应该能操作登陆用户的主目录了(否则如果没有其他共享目录,登陆上去啥也干不了啊),应该是这样的原因吧。
Screenshot_20250109_094216_com.mxtech.videoplayer.ad.jpg

Screenshot_20250109_094405_com.mxtech.videoplayer.ad.jpg

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[^_^]
deepin developers team
2025-01-09 10:14
#8
ycscg

Sample configuration file for the Samba suite for Debian GNU/Linux.

This is the main Samba configuration file. You should read the

smb.conf(5) manual page in order to understand the options listed

here. Samba has a huge number of configurable options most of which

are not shown in this example

Some options that are often worth tuning have been included as

commented-out examples in this file.

- When such options are commented with ";", the proposed setting

differs from the default Samba behaviour

- When commented with "#", the proposed setting is the default

behaviour of Samba but the option is considered important

enough to be mentioned here

NOTE: Whenever you modify this file you should run the command

"testparm" to check that you have not made any basic syntactic

errors.

#======================= Global Settings =======================

[global]

Browsing/Identification

Change this to the workgroup/NT-domain name your Samba server will part of

workgroup = WORKGROUP

Networking

The specific set of interfaces / networks to bind to

This can be either the interface name or an IP address/netmask;

interface names are normally preferred

; interfaces = 127.0.0.0/8 eth0

Only bind to the named interfaces and/or networks; you must use the

'interfaces' option above to use this.

It is recommended that you enable this feature if your Samba machine is

not protected by a firewall or is a firewall itself. However, this

option cannot handle dynamic or non-broadcast interfaces correctly.

; bind interfaces only = yes

Debugging/Accounting

This tells Samba to use a separate log file for each machine

that connects

log file = /var/log/samba/log.%m

Cap the size of the individual log files (in KiB).

max log size = 1000

We want Samba to only log to /var/log/samba/log..

Append syslog@1 if you want important messages to be sent to syslog too.

logging = file

Do something sensible when Samba crashes: mail the admin a backtrace

panic action = /usr/share/samba/panic-action %d

####### Authentication #######

Server role. Defines in which mode Samba will operate. Possible

values are "standalone server", "member server", "classic primary

domain controller", "classic backup domain controller", "active

directory domain controller".

Most people will want "standalone server" or "member server".

Running as "active directory domain controller" will require first

running "samba-tool domain provision" to wipe databases and create a

new domain.

server role = standalone server

obey pam restrictions = yes

This boolean parameter controls whether Samba attempts to sync the Unix

password with the SMB password when the encrypted SMB password in the

passdb is changed.

unix password sync = yes

For Unix password sync to work on a Debian GNU/Linux system, the following

parameters must be set (thanks to Ian Kahan < for

sending the correct chat script for the passwd program in Debian Sarge).

passwd program = /usr/bin/passwd %u
passwd chat = Enter\snew\s\spassword:* %n\n Retype\snew\s\spassword:* %n\n password\supdated\ssuccessfully .

This boolean controls whether PAM will be used for password changes

when requested by an SMB client instead of the program listed in

'passwd program'. The default is 'no'.

pam password change = yes

This option controls how unsuccessful authentication attempts are mapped

to anonymous connections

map to guest = bad user

########## Domains ###########

The following settings only takes effect if 'server role = classic

primary domain controller', 'server role = classic backup domain controller'

or 'domain logons' is set

It specifies the location of the user's

profile directory from the client point of view) The following

required a [profiles] share to be setup on the samba server (see

below)

; logon path = \%N\profiles%U

Another common choice is storing the profile in the user's home directory

(this is Samba's default)

logon path = \%N%U\profile

The following setting only takes effect if 'domain logons' is set

It specifies the location of a user's home directory (from the client

point of view)

; logon drive = H:

logon home = \%N%U

The following setting only takes effect if 'domain logons' is set

It specifies the script to run during logon. The script must be stored

in the [netlogon] share

NOTE: Must be store in 'DOS' file format convention

; logon script = logon.cmd

This allows Unix users to be created on the domain controller via the SAMR

RPC pipe. The example command creates a user account with a disabled Unix

password; please adapt to your needs

; add user script = /usr/sbin/useradd --create-home %u

This allows machine accounts to be created on the domain controller via the

SAMR RPC pipe.

The following assumes a "machines" group exists on the system

; add machine script = /usr/sbin/useradd -g machines -c "%u machine account" -d /var/lib/samba -s /bin/false %u

This allows Unix groups to be created on the domain controller via the SAMR

RPC pipe.

; add group script = /usr/sbin/addgroup --force-badname %g

############ Misc ############

Using the following line enables you to customise your configuration

on a per machine basis. The %m gets replaced with the netbios name

of the machine that is connecting

; include = /home/samba/etc/smb.conf.%m

Some defaults for winbind (make sure you're not using the ranges

for something else.)

; idmap config * : backend = tdb
; idmap config * : range = 3000-7999
; idmap config YOURDOMAINHERE : backend = tdb
; idmap config YOURDOMAINHERE : range = 100000-999999
; template shell = /bin/bash

Setup usershare options to enable non-root users to share folders

with the net usershare command.

Maximum number of usershare. 0 means that usershare is disabled.

usershare max shares = 100

Allow users who've been granted usershare privileges to create

public shares, not just authenticated ones

usershare allow guests = yes

#======================= Share Definitions =======================

[homes]
comment = Home Directories
browseable = no

By default, the home directories are exported read-only. Change the

next parameter to 'no' if you want to be able to write to them.

read only = yes

File creation mask is set to 0700 for security reasons. If you want to

create files with group=rw permissions, set next parameter to 0775.

create mask = 0700

Directory creation mask is set to 0700 for security reasons. If you want to

create dirs. with group=rw permissions, set next parameter to 0775.

directory mask = 0700

By default, \server\username shares can be connected to by anyone

with access to the samba server.

The following parameter makes sure that only "username" can connect

to \server\username

This might need tweaking when using external authentication schemes

valid users = %S

Un-comment the following and create the netlogon directory for Domain Logons

(you need to configure Samba to act as a domain controller too.)

;[netlogon]
; comment = Network Logon Service
; path = /home/samba/netlogon
; guest ok = yes
; read only = yes

Un-comment the following and create the profiles directory to store

users profiles (see the "logon path" option above)

(you need to configure Samba to act as a domain controller too.)

The path below should be writable by all users so that their

profile directory may be created the first time they log on

;[profiles]
; comment = Users profiles
; path = /home/samba/profiles
; guest ok = no
; browseable = no
; create mask = 0600
; directory mask = 0700

[printers]
comment = All Printers
browseable = no
path = /var/tmp
printable = yes
guest ok = no
read only = yes
create mask = 0700

Windows clients look for this share name as a source of downloadable

printer drivers

[print$]
comment = Printer Drivers
path = /var/lib/samba/printers
browseable = yes
read only = yes
guest ok = no

Uncomment to allow remote administration of Windows print drivers.

You may need to replace 'lpadmin' with the name of the group your

admin users are members of.

Please note that you also need to set appropriate Unix permissions

to the drivers directory for these users to have write rights in it

; write list = root, @lpadmin

看了下,deepin 和上游仓库的 samba 包中的同名配置文件是一致的。都是默认共享了用户主目录。只是一些设备上忽略 browseable 字段,仍然能够显示它。一般 linux 上是不会忽略该字段的,遵循规则不予在浏览的共享服务器上显示。
image.png

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[^_^]
deepin developers team
2025-01-09 10:17
#9

@charm楼主也可以贴下自己的配置看看。

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