PDF de programación - Samba PDC

Internet: samba-micro-COMO
Copyright © 1999 GarZa - [email protected]
8 de diciembre de 1999.

Este micro-COMO cubre como un ordenador linux puedes compartir su disco, impresoras y
como crear un dominio samba-PDC para Windows-NT.

1. Introducción
2. Que es samba
3. /etc/smb.conf
3.1.- Como compartir una impresora Linux con una máquina Windows
3.2.- Acentos en ficheros samba.
4. Autentificación de usuarios
4.1 Que es un dominio PDC
4.2 Como crear un servidor PDC con samba
4.3 Sincronizar claves
5. Configuración de WinNT
6. Windows 9x
7. Utilidad Swat
8. Como realizar copias de seguridad del disco duro de un PC desde Linux
9. Diferencias con versiones anteriores
10. Más información

1. Introducción.

El objetivo es compartir el disco del servidor pinero entre los clientes Windows y proporcionar un sistema de autenticación de
usuarios.

Sistema utilizado: RedHat 6.0 con kernel 2.2.5-15, samba-2.0.5a.

2. Que es samba.

Microsoft Windows utiliza el protocolo SMB para compartir discos e impresoras y el protocolo NetBIOS (network basic
input/output system) proporciona a los programas de aplicación un conjunto de comandos para solicitar los servicios de bajo
nivel necesarios para establecer sesiones entre nodos de una red, para transmitir información en ambos sentidos y resolver
nombres e IPs. Samba proporciona a Linux soporte para estos protocolos, de forma que puede compartir discos e impresoras
con Windows. Para ello se utilizan dos demonios "smbd" y "nmbd ", que se ejecutan en un script de inicio o en /etc/inetd.conf,
que es el método que yo he elegido:

/etc/inetd.conf
---------
netbios-ssn stream tcp nowait root /usr/sbin/smbd smbd
netbios-ns dgram udp wait root /usr/sbin/nmbd nmbd

Y en /etc/services deben existir las entradas para los puertos

netbios-ns 137/tcp # NETBIOS Name Service
netbios-ns 137/udp
netbios-dgm 138/tcp # NETBIOS Datagram Service
netbios-dgm 138/udp
netbios-ssn 139/tcp # NETBIOS session service
netbios-ssn 139/udp

3.- /etc/smb.conf

La configuración de samba se efectúa mediante un solo fichero /etc/smb.conf:

#*******************************
#/etc/smb.conf
#********************************
#Los punto y coma y almoadillas son comentarios.

# 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 (perhaps too
# many!) most of which are not shown in this example
#
# Any line which starts with a ; (semi-colon) or a # (hash)
# is a comment and is ignored. In this example we will use a #
# for commentry and a ; for parts of the config file that you
# may wish to enable
#
# NOTE: Whenever you modify this file you should run the command "testparm"
# to check that you have not many any basic syntactic errors.
#
#======================= Global Settings =====================================

# Opciones generales de configuración
[global]

# workgroup = NT-Domain-Name or Workgroup-Name, eg: REDHAT4
# Dominio PDC
workgroup = MICASA

# nombre con el que aparecerá nuestra máquina en las demas
netbios name = PINERO

# Comentario que aparece en la ventana "Entono de red" en
# Windows
server string = Samba Server pinero

# This option is important for security. It allows you to restrict
# connections to machines which are on your local network. The
# following example restricts access to two C class networks and
# the "loopback" interface. For more examples of the syntax see
# the smb.conf man page
# Los recursos compartidos con samba sólo pueden ser utilizados
# por ordenadores cuya IP empieza por 192.168.8 y 127
hosts allow = 192.168.8. 127.

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

# you may wish to override the location of the printcap file
; printcap name = /etc/printcap

# on SystemV system setting printcap name to lpstat should allow
# you to automatically obtain a printer list from the SystemV spool
# system
; printcap name = lpstat

# It should not be necessary to specify the print system type unless
# it is non-standard. Currently supported print systems include:
# bsd, sysv, plp, lprng, aix, hpux, qnx
; printing = bsd

# Uncomment this if you want a guest account, you must add this to /etc/passwd
# otherwise the user "nobody" is used
; guest account = pcguest

# this tells Samba to use a separate log file for each machine
# that connects
log file = /var/log/samba/log.%m

# Put a capping on the size of the log files (in Kb).
max log size = 50

# Security mode. Most people will want user level security. See
# security_level.txt for details.

# Espedifica como se efectua la validación de contraseñas
# Seguridad a nivel de usuario, cada user con su password (smbpasswd)
security = user

# Si security = server entonces la validación se efectuará contra otro
# servidor
# Use password server option only with security = server
# En password server indicar la IP del servidor encargado de autenticar.
; password server = <NT-Server-Name>

# You may wish to use password encryption. Please read
# ENCRYPTION.txt, Win95.txt and WinNT.txt in the Samba documentation.
# Do not enable this option unless you have read those documents
# Win95, Win98 y WinNT envían sus password encriptados
encrypt passwords = yes

# 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 = /usr/local/samba/lib/smb.conf.%m

# Most people will find that this option gives better performance.
# See speed.txt and the manual pages for details
socket options = TCP_NODELAY

# Configure Samba to use multiple interfaces
# If you have multiple network interfaces then you must list them
# here. See the man page for details.
; interfaces = 192.168.12.2/24 192.168.13.2/24

# Browser Control Options:
# set local master to no if you don’t want Samba to become a master
# browser on your network. Otherwise the normal election rules apply

local master = yes

# OS Level determines the precedence of this server in master browser
# elections. The default value should be reasonable
; os level = 33

# Domain Master specifies Samba to be the Domain Master Browser. This
# allows Samba to collate browse lists between subnets. Don’t use this
# if you already have a Windows NT domain controller doing this job
domain master = yes

# Preferred Master causes Samba to force a local browser election on startup
# and gives it a slightly higher chance of winning the election
# browsing es la capacidad de obtener la lista de ordenadores conectados a la red
# Si tenemos varios servidores el preferred master será el servidor preferente
# donde los clientes busquen la lista.
preferred master = yes

# Use only if you have an NT server on your network that has been
# configured at install time to be a primary domain controller.
; domain controller = <NT-Domain-Controller-SMBName>

# Enable this if you want Samba to be a domain logon server for
# Windows95 workstations.
domain logons = yes

# if you enable domain logons then you may want a per-machine or
# per user logon script
# run a specific logon batch file per workstation (machine)
; logon script = %m.bat
# run a specific logon batch file per username
; logon script = %U.bat

# Where to store roving profiles (only for Win95 and WinNT)
# %L substitutes for this servers netbios name, %U is username
# You must uncomment the [Profiles] share below
# logon path = \\%L\Profiles\%U


# Windows Internet Name Serving Support Section:
# WINS Support - Tells the NMBD component of Samba to enable it’s WINS Server
# El protocolo WINS convierte los nombres de los ordenadores en direcciones IP,
# es lo mismo que DNS para TCP/IP.
wins support = yes

# 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
# IP servidor WINS
wins server = 192.168.8.1

# WINS Proxy - Tells Samba to answer name resolution queries on
# behalf of a non WINS capable client, for this to work there must be
# at least one WINS Server on the network. The default is NO.
; wins proxy = yes

# DNS Proxy - tells Samba whether or not to try to resolve NetBIOS names
# via DNS nslookups. The built-in default for versions 1.9.17 is yes,
# this has been changed in version 1.9.18 to no.
# Le indicamos a WINS que la resolución de nombres se hará mediante DNS
# dns proxy = no la resolución se hará mediante el fichero lmhosts
dns proxy = yes


# Si no se especifica logon drive, se automonta la unidad Z:
logon drive = P:

#al hacer login se ejecuta el script /etc/samba/netlogon/SAMBA.BAT
# y monta las unidades con net use
logon script = SAMBA.BAT

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

# Directorio personal de cada usuario
# Unidad P:
[homes]
comment = Home Directories
browseable = no
writable = yes
readonly = no
force create mode = 0700
create mode = 0700
force directory mode = 0700
directory mode = 700

# Directorio para almacen temporal de archivos
# Unidad T:
[tmp]
comment = Archivos temporales
path = /tmp
readonly = no
public = yes
writable = yes
force create mode = 0777
create mode = 0777
force directory mode = 0777
directory mode = 0777

# CD-ROM del servidor
# Unidad M:
[cdrom]

comment = CD-ROM
path = /mnt/cdrom
public = yes
writable = no

# Grupo, corresponde a /home/grp.nombre_g