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Re: A few questions



Harry Sufehmi wrote:

At the moment I'm trying to implement OpenLDAP -> AD sync and OpenLDAP -> OpenLDAP sync.
A few days ago I was a total OpenLDAP newbie though, but I'm trying hard to rectify this, especially since my manager has expressed his interest on OpenLDAP to be used in our 15,000+ users IT infrastructure.

I think you should be prepared to lower some expectations here...

Reading OpenLDAP admin guide has raised a few questions / need for clarifications, which I hope somebody here can help me with :

# I read that slapd can only function as LDAP Sync provider only when it's configured with either back-bdb or back-hdb.
Is this still the case with version 2.2.17 / 2.2.18 ?

Yes. What backend would you prefer to use?

# Quote from chapter 14.2 : "Multiple replicas of single provider content share the same per-scope session log".
Does this mean that if one of the replicas are down for a period of time, it may risk missing any updates occuring within that time ?

No, the session log is only an aid for increasing efficiency. If a particular replica is down for long enough that its content is too far out of sync, the protocol will automatically initiate a full reload of all the data.



# It seems that it's possible to implement a multi-master replication with OpenLDAP, by getting all the master servers to do 2 way sync with each other.
Do please feel free to correct me if I'm wrong.

It is not explicitly supported. I suspect you will cause an infinite update loop if you try it, but I don't know (haven't tried it).


# Is there any good HOWTO on doing OpenLDAP -> AD sync ?
I can try to figure this out myself, but it'll help tremendously if there's already a good documentation on the subject.

slurpd is more likely to work here.

--
 -- Howard Chu
 Chief Architect, Symas Corp.       Director, Highland Sun
 http://www.symas.com               http://highlandsun.com/hyc
 Symas: Premier OpenSource Development and Support