OK, just went through the research on how to set up scalable LDAP backends. By scaleable I mean without having Samba use the root dn to access ldap. This way, if you are going through the logs, you will be able to tell which domain controller is doing what.

As far as I know, it *HAS* to be done this way because the posixGroup schema is way out of date (it wont take a dn as a member). This info according to the gurus on the OpenLDAP list. In effect we have to keep a duplicate set of group records for those that will have access to the database. For example, if you want to give group based access to a group like "Domain Controllers", you would have to keep a duplicate record using a different objectClass.

Oh, yes and if you know a better way, I am always looking for better ways to get things done. :-)

How I did it was like this:

1. I set up a new OU called "Access Groups".

2. I created a new groupOfNames object in that OU called "Domain Controllers" For the "member" attribute, use the dn of the host record for your primary DC.

3. Using gq, I added simpleSecurityObject to the host record so that it would have a password. Note: Probably can't use the machine account instead due to some rather complex password issues.

4. I set the password by pasting the results of the following command into the userPassword attribute:

[EMAIL PROTECTED] openldap]$ read -sp "Enter password to be used:" pw;echo;slappasswd -s $pw;unset pw
Enter password to be used:
{SSHA}4FMerwu0qcafPYXwxlpTxuRcdtTTvZN6
[EMAIL PROTECTED] openldap]$


5. I verified that I had a proper set of ACLs by using "slapd -t" to test them. That way you don't have to restart to find out if they are bad. You also need a line like the following to each Access clause:

       by group="cn=Domain Controllers,ou=Access Groups,$2" write

6. Group access can now be had by placing the dn of the controller's host record (which must have a simpleSecurityObject) in the member attribute of the new groupOfNames group called "Domain Controllers".

To add more controllers, just create a new host record, add simpleSecurityObject to it, and add the dn of that host record as a member of the groupOfNames group called "Domain Controllers".

More details at:

http://mandrake.vmlinuz.ca/bin/view/Main/SambaThreeDomainController#OpenLDAP_Structural_Adjustments

Jim C.
--
-----------------------------------------------------------------
| I can be reached on the following Instant Messenger services: |
|---------------------------------------------------------------|
| MSN: [EMAIL PROTECTED]  AIM: WyteLi0n  ICQ: 123291844         |
|---------------------------------------------------------------|
| Y!: j_c_llings               Jabber: [EMAIL PROTECTED]        |
-----------------------------------------------------------------

--
To unsubscribe from this list go to the following URL and read the
instructions:  http://lists.samba.org/mailman/listinfo/samba

Reply via email to