[K12OSN] What's the difference between OpenLDAP backen dbm and ldbm

[Brian Webport]

Petre Scheie wrote:

> From Gerald Carter's "LDAP System Administration" (O'Reilly):
>
> "In order to build a standalone OpenLDAP server, it is necessary to 
> provide libraries for some type of database manager (DBM).  OpenLDAP 
> presently supports two categories of local DB storage.  The first, 
> referred to as ldbm, can use either the GNU Database Manager from the 
> Free Software Foundation or the BerkelyDB package from Sleepycat 
> software.  The second database type introduced in OpenLDAP 2.1, called 
> dbd, has been customized to use only the Berkeley DB 4 libraries.  The 
> newer dbd backend type is preferred to the ldbm interface for servers 
> that maintain local copies of data, such as those we will build in 
> this book."
>
> You might check out the FSF and Sleepcat websites for more details.
>
> HTH
>
> Petre
>
> Brian Webport wrote:
>
>> We're happily running our Samba 3 / OpenLDAP system setup using the 
>> smbldap-installer script. I've been looking around trying to do a 
>> little background reading on the OpenLDAP section and I'm a little 
>> confused as to what the difference is between dbm & ldbm for the 
>> backend database.
>>
>> I see from our slapd.conf file that the installer uses ldbm is this 
>> better then dbm ??
>>
>> Any information would be greatfully received.
>>
>> Thanks
>> Brian Chivers
>> Portsmouth College
>>
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>
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Thanks, I'll have a look

Interesting that the smbldap-installer script sets up a ldbm backend 
where it looks like it should be dbd ??

Brian