[Samba] FW: making BDC samba + ldap server

Gaiseric Vandal gaiseric.vandal at gmail.com
Sat Feb 26 08:13:22 MST 2011

Is this Samba 3 or Samba 4?  


If samba 3, which ldap server are you using>


What is the mail server?  Does the mail server have its own LDAP server
included it or is also using an external LDAP server.   


If you want replication between LDAP servers, they should be the same type
of LDAP server (e.g. OpenLDAP or Apache Directory Server or Oracle Directory
Server.)   If you have one type of LDAP server for Samba and one type of
LDAP server for Mail, you will not be easily able to replicate.


If you are using Samba 3, you have a selection of LDAP servers you could
use.  The mail server will determine if which LDAP works for mail, and
whether you can share the LDAP server between mail and samba.






From: marcos gonzalez [mailto:marcos.gonzalez.cruz at gmail.com] 
Sent: Saturday, February 26, 2011 5:42 AM
To: gaiseric.vandal at gmail.com
Cc: samba at lists.samba.org
Subject: Re: [Samba] making BDC samba + ldap server


Hi guys

My network map is simple, ldap inside samba server centralizes all uses
inside the LAN included mail. My question is to reduce the use of net it's a
good idea to create other ldap server inside mail server? And finally
which's the best relation between ldap.samba server and a future ldap mail
server, master.master o master slave?

Thanks And Best Regards

2011/2/25 Gaiseric Vandal <gaiseric.vandal at gmail.com>

I don't understand your question.   What does mail have to do with Samba?
Does your mail server use LDAP authentication?  Or do you want to use the
LDAp server as an  central address book for your mail clients.  Either way,
your  LDAP server should be able to support attributes  for both e-mail and
samba requirements.

On 02/24/2011 11:42 AM, marcos gonzalez wrote:


Im not sure if it's in this list but configuring ldap Im with a doubt.I
would like to distribute openldap conexions between mail server and samba
server. Which's the better form, master-master or master-slave? I
understand  using PDC and BDC the relationship is master-slave, but between
mail and samba?

Thanks&  Best Regards

2011/2/21 marcos gonzalez<marcos.gonzalez.cruz at gmail.com>


Ok in my server the ldap config is inside /etc/ and this file nss_ldap it's
inside /etc/ldap/. i didn't understand why pass this but now I understand




Ok, and how I config nss_ldap? When I copy all database is included?

Well, the easiest way, for Samba use, is to simply cp your ldap.conf file
for the ldap client application to nss_ldap.conf--cp ldap.conf nss_ldap.conf
(this can be a bit confusing, as openldap uses a file called ldap.conf for
configuring the ldap client as well as a file called ldap.conf for
configuring basic ldap server process.  The server file is generally
contained in the directory where configuration files are kept in a
subdirectory called openldap along with files like slapd.conf and is
generally a small file witch looks something like this:

# LDAP Defaults

# See ldap.conf(5) for details
# This file should be world readable but not world writable.

BASE    dc=mydomain,dc=com
URI     ldapi://%2fvar%2frun%2fopenldap%2fldapi ldap://
# TLS_CACERT /usr/local/etc/openldap/cacert.pem

#SIZELIMIT      12
#TIMELIMIT      15
#DEREF          never

whereas the ldap.conf for the client is rather lengthy and contains quite
a bit of information for contacting the ldap server, how the dit should be
searched, etc.)

And, no, nss_ldap.conf has nothing to do with the ldap server.
nss_ldap.conf can be used to contact an external ldap server, just as the
ldap.conf for the ldap client application can/

Sorry for the newbie questions, If any time comes to barcelona contact me,
you has a beer paid (Daniel too)  :-)

Well, now that's quite a generous offer. Much appreciated.

Thanks and Best Regards

2011/2/20<tms3 at tms3.com>



Thanks, this howto for me its better. I have other doubt, syncrepl needs
to be installed or comes integrated with slapd daemon?

It is all part of the openldap suite.

And to transfer all shared samba folders and profile content, when it's
the better moment? I understand when samba is down or when is up?

Depends on the permissions. However, so long as ALL the files to be
transferred belong to users in LDAP then, with nss_ldap properly configured,
any copy that preserves permissions should be fine.

Thanks and Best Regards

2011/2/20<tms3 at tms3.com>


Now you are on to copy your slapd.conf and ldap.conf to your new
Ex: scp slapd.conf root at 2machine:/etc/openldap

---------------------------HOw I can make this If slurpd is deprecated?
The guide


not's easy to understand, not exist other howto more simple?

Here is another guide. The first link is quite comprehensive.

The entire online manual is a good read. I highly recommend it.


Now important I do the trick with slurpd. There are many other ways

but this

is easy.
Slurpd should be installed on your Master an only there.
So go in to the slapd.conf on your master and put a few lines in it

at the

Be carefull all tabs must fit exact as this example:

replica uri=ldap://IPOFYOUR2MACHINE:389

I understand the part of backup slapd only works with the service

Well Im grateful for all your time :-)

Thanks and Best Regards

2011/2/18<tms3 at tms3.com>


In my hint I think your samba PDC/Ldap is cuurently working well!
First of all install a second machine with the samba and ldap.
Do not start samba, do not start ldap.
The ldap database should be nearly empty ex:/var/lib/ldap

Now copy your smb.conf to your new machine ex: scp root at 2machine
Edit the smb.conf to your needs and adjust it to be a bdc:
domain master=NO
domain logons=YES
Make a testparm it should succed like this:
Load smb config files from /etc/samba/smb.conf
Processing section "[netlogon]"
WARNING: The "share modes" option is deprecated
Processing section "[sysvol]"
WARNING: The "share modes" option is deprecated
Processing section "[homes]"
Processing section "[profiles]"
Processing section "[alles]"
Processing section "[printers]"
Processing section "[print$]"
Loaded services file OK.
Server role: ROLE_DOMAIN_BDC<----------------------------you are a BDC
Press enter to see a dump of your service definitions

Yes very nice!

Now you are on to copy your slapd.conf and ldap.conf to your new
Ex: scp slapd.conf root at 2machine:/etc/openldap

Now important I do the trick with slurpd.

Sorry, but Slurpd is depricated and no longer available in Openldap
since 2.3

Here is nice overview of the way LDAP currently works:


Once you have sync-repl set up on the current master, and a proper
slapd.conf and ldap.conf file on the new machine, start ldap, then

smbpasswd -w<ldap-master-passwd>
net rpc join -U<administrator>  <domain name>









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