Re: [389-users] Db-link setup question

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Reinhard Nappert wrote:
Rick,
the first issue is solved my adding an additional aci for that proxy admin,  allowing proxy:
aci: (targetattr=*)(target = "ldap:///ou=region B,ou=people,o=suffix")(version 3.0;acl
 "Allows use of admin for chaining"; allow (proxy) (userdn="ldap:///uid=proxy admin,cn=config");)

However, when I restart Server A, it is broken with err=32.
What entry is giving err=32?
-Reinhard

-----Original Message-----
From: fedora-directory-users-bounces@xxxxxxxxxx [mailto:fedora-directory-users-bounces@xxxxxxxxxx] On Behalf Of Reinhard Nappert
Sent: Monday, July 20, 2009 3:17 PM
To: General discussion list for the 389 Directory server project.
Subject: RE: [389-users] Db-link setup question

I do not feel very confident using chained links:

When I change my configuration to
dn: cn=serverBlink,cn=chaining database,cn=plugins,cn=config
objectclass: top
objectclass: extensibleObject
objectclass: nsBackendInstance
nsslapd-suffix: ou=region B,ou=people,o=suffix
nsfarmserverurl: ldap://serverB:389/
nsmultiplexorbinddn: cn=proxy admin,cn=config
nsmultiplexorcredentials: secret
cn: serverBlink
dn: cn="ou=region B,ou=people,o=suffix",cn=mapping tree,cn=config
objectclass: top
objectclass: extensibleObject
objectclass: nsMappingTree
nsslapd-state: backend
nsslapd-backend: serverBlink
nsslapd-parent-suffix: "ou=people,o=suffix "
cn: "ou=region B,ou=people,o=suffix"
Server A proxies the correct search to Server B. However, the response is empty if I search for an existing entry of Server B. I also see the search in Server B's access file, but the response is empty. If I contact Server B with the proxy admin credentials, it returns the existing object. This tells me that the ACI's are working.
Do you have an explanation for that?

Even more disturbing: After I restart Server A, the entire chaining is broken. I get again err=32, but this time server A even does not perform the search twoards Server B.

-Reinhard

-----Original Message-----
From: fedora-directory-users-bounces@xxxxxxxxxx [mailto:fedora-directory-users-bounces@xxxxxxxxxx] On Behalf Of Rich Megginson
Sent: Monday, July 20, 2009 2:33 PM
To: General discussion list for the 389 Directory server project.
Subject: Re: [389-users] Db-link setup question

Reinhard Nappert wrote:
Sorry, the chaining server. I checked the chained to server (Server B)'s access file and it gets it from there. This is good, that Server A actually talks to Server B. The issue is the following:

I do a search with the
Base: l=location B,ou=people,o=suffix

It performs the search on Server B with the exactly same search-base, although I configured it as
nsslapd-suffix: ou=region B,ou=people,o=suffix

So, shouldn't Server A alter the search and use ou=region B,ou=people,o=suffix as base?

On the otherhand, I could change the configuration accordingly.
There is no search altering or search mapping with chaining.
-Reinhard

-----Original Message-----
From: fedora-directory-users-bounces@xxxxxxxxxx
[mailto:fedora-directory-users-bounces@xxxxxxxxxx] On Behalf Of Rich Megginson
Sent: Monday, July 20, 2009 1:57 PM
To: General discussion list for the 389 Directory server project.
Subject: Re: [389-users] Db-link setup question

Reinhard Nappert wrote:
Nothing in error and only err=32 in access.
err=32 in which access?  The chaining server or the chained to server?
-Reinhard

-----Original Message-----
From: fedora-directory-users-bounces@xxxxxxxxxx
[mailto:fedora-directory-users-bounces@xxxxxxxxxx] On Behalf Of Rich Megginson
Sent: Monday, July 20, 2009 1:15 PM
To: General discussion list for the 389 Directory server project.
Subject: Re: [389-users] Db-link setup question

Reinhard Nappert wrote:
Thanks Rick,

Yes this is what I did. I find the error message not very user-friendly. Anyway, when I use a different bind dn, it says that my sub suffix l=location B,ou=people,o=suffix does not exist. Do I need to add that object as well? Thought, the directory takes care of this one.
Yes, the object does not have to exist in the chaining database, only in the real database that is chained to.  Any info in the access and error logs on the chaining server or the chained to server?
-Reinhard

-----Original Message-----
From: fedora-directory-users-bounces@xxxxxxxxxx
[mailto:fedora-directory-users-bounces@xxxxxxxxxx] On Behalf Of Rich Megginson
Sent: Monday, July 20, 2009 12:37 PM
To: General discussion list for the 389 Directory server project.
Subject: Re: [389-users] Db-link setup question

Reinhard Nappert wrote:
Hi,
I have two LDAP Servers setup (Server A and Server B). Both of them have the identical suffix (o=suffix). Again, both of them have a people organizational unit (ou=people,o=suffix). Server B has a big subtree (ou=region B,ou=people,o=suffix). My intension is to create a db link on Server A, which links to the ou=region B,ou=people,o=suffix subtree on Server B. I did create the database link and a new suffix l=location B,ou=people,o=suffix on Server A with the following entries: dn: cn=serverBlink,cn=chaining database,cn=plugins,cn=config
objectclass: top
objectclass: extensibleObject
objectclass: nsBackendInstance
nsslapd-suffix: ou=region B,ou=people,o=suffix
nsfarmserverurl: ldap://serverB:389/
nsmultiplexorbinddn: cn=proxy admin,cn=config
nsmultiplexorcredentials: secret
cn: serverBlink
dn: cn="l=location B,ou=people,o=suffix",cn=mapping tree,cn=config
objectclass: top
objectclass: extensibleObject
objectclass: nsMappingTree
nsslapd-state: backend
nsslapd-backend: serverBlink
nsslapd-parent-suffix: "ou=people,o=suffix "
cn: "l=location B,ou=people,o=suffix"
I am only interested in reading the server B information, when accessing from server A. The "proxy admin" user was created as well. When I do a search with the base l=location B,ou=people,o=suffix, accessing server A, I always get the following error "Proxy dn should not be rootdn". What did I miss for the setup?
You cannot chain the directory manager user (aka rootdn).  I'm assuming you're doing a search like ldapsearch -D "cn=directory manager" ...
This will not work - you must use a user other than directory manager.
Thanks,
-Reinhard
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