yes to share a single set of users/groups in LDAP to multiple samba servers you will need LDAP and a PDC and the other servers will be BDCs. yes you will join BDC's with net rpc join -D domain -S pdc_server_name -U root%password

read chapter 5.3 of samba 3 by example.pdf

Soohoon Lee wrote:
Thanks, 'sharing LDAP server' is to share the same set of users/groups in the LDAP DB, not separate sets of users/groups for each samba servers.
It looks like PDC ??? maybe what I want is more like NIS.
So IIUC, to share a single set of users/groups in the LDAP server from multiple samba servers, I need LDAP and samba DC?
And samba servers have to join the samba DC by net rpc join?
Thanks a lot.
Soohoon.

On Fri, Aug 1, 2008 at 11:22 AM, Adam Williams <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote:

    sure you can have multiple domains with all the account info in
    LDAP.  if you really want it to work together well you'll have a
    PDC and BDC's though.  you may be able to try samba intertrust
    relationships, but i've never used that


    Soohoon Lee wrote:
Thanks all
    This is my smb.conf
    [global]
            dos charset = UTF-8
            workgroup = DOMSMB
            security = user
            allow trusted domains = No
            password server = NULL
            passdb backend = ldapsam:ldap://10.17.124.190/
    <http://10.17.124.190/>
            max log size = 50
            load printers = No
            stat cache = No
            os level = 10
            dns proxy = No
            ldap suffix = dc=my-domain,dc=com
            ldap user suffix = ou=Users
            ldap group suffix = ou=Groups
            ldap admin dn = cn=Manager,dc=my-domain,dc=com
            ldap ssl = no

    And I like to make multiple samba servers to share single LDAP
    server without using domain controller feature.
    I'm getting feeling that pure LDAP server is for single samba
    server or the LDAP server should have samba DC to serve multiple
    samba servers?
Thanks,
    Soohoon.
On Fri, Aug 1, 2008 at 7:02 AM, Lukasz Zalewski
    <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote:

        Lukasz Zalewski wrote:

            Adam Williams wrote:

                are you using security = user or security = domain on
                your multiple servers?
                Soohoon Lee wrote:

                    Hi
                    Is it possible to use single LDAP server and
                    multiple samba servers?
                    The problem I'm having now is
                    Each server thinks their host name is their LDAP
                    domain name, or
                    sambaDomainName, and
                    complain the user's SID is different so can't
                    authenticate.
                    How do I make samba servers use one domain name
                    and SID?

                    LDAP domain name is DOMSMB

                    dn: sambaDomainName=DOMSMB,dc=my-domain,dc=com
                    sambaSID: S-1-5-21-2479917030-3150298425-213194246

                    And samba server created a new domain after its
                    hostname.

                    dn: sambaDomainName=SRV6,dc=my-domain,dc=com
                    sambaSID: S-1-5-21-4202146032-850913369-3381557932
                    And complain user's SID is different from its SID.

                    Thanks,
                    Soohoon.


            We have student domain and staff domain and one LDAP
            server. We wanted staff members to log onto student
            domain. So we considered two options:
            1. Interdomain trust relationship
            
(http://us4.samba.org/samba/docs/man/Samba-HOWTO-Collection/InterdomainTrusts.html)

            However this option was not good for us as we didn't want
            to open up the firewall and we wanted staff members to
            get the proper student experience (i.e. home dirs and
            profiles on the student server). So that brought us to
            the second option:
            2. ldap translucent proxy overlay
            (http://linux.die.net/man/5/slapo-translucent)
            In this setting we override sids (i.e. domain sid part of
            the staff domain is substituted with student domain
            portion of the sid) for users and groups and point samba
            to the overlay. Bear in mind that all of the changes make
            by samba like machine passwords, user passwords, idmap
            mappings etc will go no further than the proxy so great
            care must be taken in LDAP setups that use referrals.


            Now the most important question is what do you use you
            two domains for?

            HTH

            Lukasz


        Ah sorry I didn't read the Subject line properly you do not
        want PDC. As Andy pointed out maybe you should have one of
        the servers as a domain member of the other domain

        Lukasz



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