[Samba] Samba 3 PDC + OpenLDAP + Mandrake 10.0

Buchan Milne bgmilne at obsidian.co.za
Thu May 6 12:17:47 GMT 2004

On Thu, 29 Apr 2004, Wisudanto C Suntoyo wrote:

> Hi all Need Urgent Help :(

Sorry for my late reply, I have been quite busy catching up on package 
maintenance and on a project on a tight schedule.

> I' m new to this List... I'm trying to setup a new Samba 3 PDC + OpenLDAP
> on a Mandrake 10.0 to replace an older server...
> Cause I need an LDAP Backend for a BDC planned on a remote site, and Samba 3
> came along.
> So I'm following this Doc
> http://au1.samba.org/samba/docs/man/guide/happy.html

This document has a number of errors, and does not address a number of 
issues that have been taken care of for you in the Mandrake packages of 
openldap and samba.

Additionally, it shows a *very* convoluted method of getting network 
authentication for unix clients working against unix servers (via 

Although I haven't had time to update the articles at mandrakesecure.net 
for OpenLDAP-2.1 and samba3, I think they would still be a better 


> 1. I fail once I get to this step 18 of initialization and creation
> 	[root at qjktsmb root]# net rpc join -U Administrator%My_Pa555
> 	The username or password was not correct.

This is the ridiculous part, it's not necessary to run winbind on unix 
clients when you have a unix LDAP server, so you don't need to join unix 
clients to the domain.

The method I suggest is to add an LDAP account for 'root, for example by 
using the openldap-migration package. Then, you will be able to set this 
root user's smb password (via smbpasswd -a), and use that account to join 
machines to the domain.

Additionally, if you have users who are members of the adm group with smb 
passwords, they should also be able to join machines to the domain.

> I've Tried changing the pass a few times with the smbldap-passwd tool
> nothing changed
> 2. I also cant seem to authenticate my Administrator user (uid=0) to add
> Machine
> accounts... an unknown username or bad password error comes up
> Any Ideas
> Regards Wisu
> LDAP log --->

>From the LDAP log, it seems you are having samba bind as your OpenLDAP 
rootdn, which is a bad practice. You should instead add an account for the 
machine (exampes such as those shown in the mandrakesecure.net articles 
should work), and add that dn to the "cn=Domain Controllers" group (it 
should not be a posixGroup ... so delete the one the smb-populate makes 
for you, andmake it a groupofnames:
$ ldapsearch -x "(cn=Domain Controllers)" -LLL
dn: cn=Domain Controllers,ou=Group,dc=ranger,dc=dnsalias,dc=com
objectClass: groupOfNames
objectClass: top
cn: Domain Controllers
member: cn=kiowa.ranger.dnsalias.com,ou=Hosts,dc=ranger,dc=dnsalias,dc=com

(BTW, this only applies if you are using the Mandrake packages, if you've 
compiled from source, you've lost a lot of good configuration).


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