Compartilhamento Windows XP - Ubuntu 9

[daniel.malaquias]

Olá pessoal. Estou com um problema um tanto quanto estranho. Tenho uma rede com várias máquinas, windows xp, windows 7 e umá maquina com UBuntu a qual compartilho algumas pastas, e um HD externo.

Todas as máquinas (windows xp e windows 7) visualizam e acessam os compartilhamentos do Ubuntu, porem existe uma com windows xp, recém formatada, que acessa apenas as pastas compartilhadas no ubuntu dentro do HD principal. Até visualiza o compartilhamento das pastas do HD externo, mas quando vou tentar abrir, dá msg dizendo "contate o administrador do sistema, não tem permissão de acesso".

Alguém pode dar uma dica do que posso tentar fazer para este acesso funcionar? (Dentro do arquivo smb.conf não tem senhas pra usuários, e guest = ok

Valew pessoal.

[platao]

Movido para internet redes para que tenha melhor visualização.

[zekkerj]

Pode postar o "smb.conf" da máquina ubuntu?

[daniel.malaquias]

Eis o arquivo smb.conf

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

[global]

   workgroup = LAN
   server string = %h server (Samba, Ubuntu)
   usershare owner only = false
;   wins server = w.x.y.z

   dns proxy = no
;   name resolve order = lmhosts host wins bcast

#### Networking ####
;   interfaces = 127.0.0.0/8 eth0
;   bind interfaces only = yes

#### Debugging/Accounting ####
   log file = /var/log/samba/log.%m
   max log size = 1000

   syslog = 0

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


####### Authentication #######
   security = share
   encrypt passwords = true
   passdb backend = tdbsam
   obey pam restrictions = yes
   unix password sync = yes
   passwd program = /usr/bin/passwd %u
   passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .


   pam password change = yes
   map to guest = bad user

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

;   domain logons = yes
;   logon path = \\%N\profiles\%U


;   logon drive = H:
;   logon script = logon.cmd
; add user script = /usr/sbin/adduser --quiet --disabled-password --gecos "" %u


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

########## Printing ##########
;   printing = bsd
;   printcap name = /etc/printcap


;   printing = cups
;   printcap name = cups

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


;   message command = /bin/sh -c '/usr/bin/linpopup "%f" "%m" %s; rm %s' &

;   idmap uid = 10000-20000
;   idmap gid = 10000-20000
;   template shell = /bin/bash

;   winbind enum groups = yes
;   winbind enum users = yes

;   usershare max shares = 100


   usershare allow guests = yes

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

;[homes]
;   comment = Home Directories
;   browseable = no


;   read only = yes
;   create mask = 0700
;   directory mask = 0700

;   valid users = %S


;[netlogon]
;   comment = Network Logon Service
;   path = /home/samba/netlogon
;   guest ok = yes
;   read only = yes
;   share modes = no


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

wins support = no
[printers]
   comment = All Printers
   browseable = no
   path = /var/spool/samba
   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
;   write list = root, @lpadmin

# A sample share for sharing your CD-ROM with others.
;[cdrom]
;   comment = Samba server's CD-ROM
;   read only = yes
;   locking = no
;   path = /cdrom
;   guest ok = yes

;   preexec = /bin/mount /cdrom
;   postexec = /bin/umount /cdrom



[www]
path = /var/www
available = yes
browsable = yes
public = yes
writable = yes

[SpacoAberto]
path = /media/SpacoAberto
available = yes
browsable = yes
public = yes
writable = yes
guest ok = yes

[Arquivos]
path = /media/SpacoAberto/Arquivos
available = yes
browsable = yes
public = yes
writable = yes

[zekkerj]

security = share

Era o que eu estava pensando: o modo "security = share" é uma má escolha, ele foi criado pra simular o modo de funcionamento da rede Windows que foi usado até o Windows 9x. Se você não tem máquinas Windows 9x, não deve usar o "security = share".

Tenha em mente que o modo "security = share" não funciona da forma que se pensa, permitindo acesso irrestrito aos arquivos do servidor.

Volte para o modo "security = user", que é o padrão, e crie usuários com o mesmo nome dos usuários usados nas máquinas XP.

[daniel.malaquias]

Faço isso apenas utilizando o comando

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sudo smbpasswd -a usuario


E com respeito as senhas destes usuarios? Cadastro as senhas do windows ou faço uma nova senha?

[zekkerj]

Cadastre a mesma senha, assim vc só deve precisar cadastrar as senhas no primeiro acesso.

[daniel.malaquias]

Pois é caro colega vascaíno. Olha só o que acontece quando vou tentar fazer o que você me pede:

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sudo smbpasswd -a arqserver
New SMB password: minhasenhaXYZ
Retype new SMB password: minhasenhaXYZ
Failed do add entry for user arqserver


E continuo acessando as pastas do ubuntu pelo windows 7 sem pedir a senha

E agora? 

[zekkerj]

Vc criou o usuário "arqserver" no Ubuntu antes de executar o smbpasswd?

sudo adduser arqserver

[daniel.malaquias]

Bom dia amigos.
Colega vascaíno, continuando a questão:
alterei o smb.conf com a linha security=user, adicionei o usuário ao ubuntu, e o usuário ao smbpasswd, dessa vez não deu erro. Eu tinha realizado o compartilhamento usando o comando

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sudo shares-admin


O que fiz então foi: Excluir esse compartilhamento via este comando, e criar o compartilhamento com o comando

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gksudo nautilus


fui em media/disco para compartilhar, botão direito, opções de compartilhamento. Fiz o compartilhamento. Estou conseguindo acessar das máquinas com windows 7 e UMA maquina com windows XP, mas ainda sem solicitar a senha

Possíveis passos adicionais

[zekkerj]

A senha pode estar armazenada pelo windows. Experimente alterar a senha cadastrada no samba pra uma das contas, o acesso com esse usuário vai pedir senha pelo menos uma vez.

Outra coisa a rever é essa política que vc estabeleceu de autorizar acesso de visitante ("public = yes", "guest ok = yes") pros compartilhamentos.

[daniel.malaquias]

Vamos lá...vamos lá.
Depois das últimas modificações realizadas, o arquivo smb.conf ficou da seguinte forma:

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#
# 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.
# A well-established practice is to name the original file
# "smb.conf.master" and create the "real" config file with
# testparm -s smb.conf.master >smb.conf
# This minimizes the size of the really used smb.conf file
# which, according to the Samba Team, impacts performance
# However, use this with caution if your smb.conf file contains nested
# "include" statements. See Debian bug #483187 for a case
# where using a master file is not a good idea.
#

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

[global]

## Browsing/Identification ###

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

# server string is the equivalent of the NT Description field
   server string = %h server (Samba, Ubuntu)
usershare owner only = false


# Windows Internet Name Serving Support Section:
# WINS Support - Tells the NMBD component of Samba to enable its WINS Server
#   wins support = no

# WINS Server - Tells the NMBD components of Samba to be a WINS Client
# Note: Samba can be either a WINS Server, or a WINS Client, but NOT both
;   wins server = w.x.y.z

# This will prevent nmbd to search for NetBIOS names through DNS.
   dns proxy = no

# What naming service and in what order should we use to resolve host names
# to IP addresses
;   name resolve order = lmhosts host wins bcast

#### 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

# If you want Samba to only log through syslog then set the following
# parameter to 'yes'.
#   syslog only = no

# We want Samba to log a minimum amount of information to syslog. Everything
# should go to /var/log/samba/log.{smbd,nmbd} instead. If you want to log
# through syslog you should set the following parameter to something higher.
   syslog = 0

# Do something sensible when Samba crashes: mail the admin a backtrace
   panic action = /usr/share/samba/panic-action %d


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

# "security = user" is always a good idea. This will require a Unix account
# in this server for every user accessing the server. See
# /usr/share/doc/samba-doc/htmldocs/Samba3-HOWTO/ServerType.html
# in the samba-doc package for details.
   security = user

# You may wish to use password encryption.  See the section on
# 'encrypt passwords' in the smb.conf(5) manpage before enabling.
   encrypt passwords = true

# If you are using encrypted passwords, Samba will need to know what
# password database type you are using. 
   passdb backend = tdbsam

   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 <<kahan@informatik.tu-muenchen.de> 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 ###########

# Is this machine able to authenticate users. Both PDC and BDC
# must have this setting enabled. If you are the BDC you must
# change the 'domain master' setting to no
#
;   domain logons = yes
#
# The following setting only takes effect if '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/adduser --quiet --disabled-password --gecos "" %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

########## Printing ##########

# If you want to automatically load your printer list rather
# than setting them up individually then you'll need this
#   load printers = yes

# lpr(ng) printing. You may wish to override the location of the
# printcap file
;   printing = bsd
;   printcap name = /etc/printcap

# CUPS printing.  See also the cupsaddsmb(8) manpage in the
# cupsys-client package.
;   printing = cups
;   printcap name = cups

############ 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

# Most people will find that this option gives better performance.
# See smb.conf(5) and /usr/share/doc/samba-doc/htmldocs/Samba3-HOWTO/speed.html
# for details
# You may want to add the following on a Linux system:
#         SO_RCVBUF=8192 SO_SNDBUF=8192
#   socket options = TCP_NODELAY

# The following parameter is useful only if you have the linpopup package
# installed. The samba maintainer and the linpopup maintainer are
# working to ease installation and configuration of linpopup and samba.
;   message command = /bin/sh -c '/usr/bin/linpopup "%f" "%m" %s; rm %s' &

# Domain Master specifies Samba to be the Domain Master Browser. If this
# machine will be configured as a BDC (a secondary logon server), you
# must set this to 'no'; otherwise, the default behavior is recommended.
#   domain master = auto

# Some defaults for winbind (make sure you're not using the ranges
# for something else.)
;   idmap uid = 10000-20000
;   idmap gid = 10000-20000
;   template shell = /bin/bash

# The following was the default behaviour in sarge,
# but samba upstream reverted the default because it might induce
# performance issues in large organizations.
# See Debian bug #368251 for some of the consequences of *not*
# having this setting and smb.conf(5) for details.
;   winbind enum groups = yes
;   winbind enum users = yes

# Setup usershare options to enable non-root users to share folders
# with the net usershare command.

# Maximum number of usershare. 0 (default) 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 = no

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

# Un-comment the following (and tweak the other settings below to suit)
# to enable the default home directory shares.  This will share each
# user's home directory as \\server\username
;[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.  Un-comment the following parameter
# to make 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
;   share modes = no

# 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

wins support = no
[printers]
   comment = All Printers
   browseable = no
   path = /var/spool/samba
   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

# A sample share for sharing your CD-ROM with others.
;[cdrom]
;   comment = Samba server's CD-ROM
;   read only = yes
;   locking = no
;   path = /cdrom
;   guest ok = yes

# The next two parameters show how to auto-mount a CD-ROM when the
# cdrom share is accesed. For this to work /etc/fstab must contain
# an entry like this:
#
#       /dev/scd0   /cdrom  iso9660 defaults,noauto,ro,user   0 0
#
# The CD-ROM gets unmounted automatically after the connection to the
#
# If you don't want to use auto-mounting/unmounting make sure the CD
# is mounted on /cdrom
#
;   preexec = /bin/mount /cdrom
;   postexec = /bin/umount /cdrom




[www]
path = /var/www
available = yes
browsable = yes
public = yes
writable = yes




A pasta [www] que aparece no final do arquivo de configuração, é um compartilhamento ainda que está funcionando via o comando sudo shares-admin, e está funcionando desta forma em todas as máquinas,sem a utilização de senha.

O HD secundário [SpacoAberto] não está mais aparecendo nesta listagem desde que exclui da lista com sudo shares-admin. Porém, ambos entram até o momento sem senha, e a partir de uma maquina com windows 2000 consigo visualizar os 2 compartilhamentos, porem só acesso o compartilhamento [www]. o compartilhamento [SpacoAberto_Disk] que criei em Media/SpacoAberto me retorna erro de permissão e acesso.

O que posso fazer neste arquivo, e como refazer estes compartilhamentos de forma correta? acho que estou quase lá.

Valew Brodhers

[daniel.malaquias]

É isso ae gurizada.
A última modificação que fiz no arquivo smb.conf foi dentro do bloco do compartilhamento [www], deixar

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public = no


depois fiz os comandos

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sudo stop smbd
sudo start smbd


Nas máquinas que já estavam funcionando, não houve alteração, como disse o amigo vascaíno, o windows memorizou o usuário e a senha,
na maquina com windows 2000 pediu a senha, porém funcionou com a senha root do ubuntu, e não com o usuario arqserver que eu criei.

Uma observação, é que entrei nas propriedades do compartilhamento do HD externo compartilhado, e tentei dar o acesso de leitura e escrita para o usuário arqserver (que aparece na lista de usuários ali dentro do list), mas o usuário nao fica selecionado, depois que clico nele, volta na aba como padrão o usuário root do sistema. Não sei se isso é assim mesmo que funciona, se está certo ou não, ou se existe mais alguma coisa a ser feita e configurada para funcionar com o usuário arqserver e não com o usuário root (não que esteja errado, funciona, mas para a minha política de segurança gostaria que funcionasse com o usuário arqserver e não o root, entendem?)

Depois de selecionado o usuário (como root mesmo) cliquei em "aplicar permissões", atualizou...atualizou...atualizou... tentei no win 2000 e funcionou.

Caso alguém tenha mais alguma idéia ou modificação, fico no aguardo, senão acho q o tópico tá 1/2 resolvido 1/2 caminho andado.