Re: [ldapext] DBIS commentary

"Bannister, Mark" <Mark.Bannister@morganstanley.com> Thu, 03 December 2015 10:35 UTC

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From: "Bannister, Mark" <Mark.Bannister@morganstanley.com>
To: "'Jordan Brown'" <Jordan.Brown@oracle.com>
Thread-Topic: DBIS commentary
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Date: Thu, 3 Dec 2015 10:35:07 +0000
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Subject: Re: [ldapext] DBIS commentary
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Jordan Brown wrote:

> > On 12/2/2015 12:59 AM, Bannister, Mark wrote:

> > Jordan Brown wrote:

> > > Do note again that RFC 4876 mapping would let you redirect the clients to use a custom

> > > case-sensitive attribute, or attributes from different auxiliary classes.

> >

> > I should really have made it clear that DBIS supersedes RFC 4876, and introduces more

> > powerful mapping constructs.  With DBIS, you can support an RFC2307 schema (case

> > insensitive) and the DBIS schema (case sensitive) from the same client if you so choose,

> > and at several levels.  You could have groups of hosts with case sensitive maps vs. groups

> > of host with case insensitive maps.  You could have a host where some maps are case

> > sensitive and some are not.  You can even have parts of a map provided via one schema

> > and parts from another, i.e. case sensitivity for some entries and insensitivity for others

> > if that’s really what you wished to do.  If you use DBIS, you certainly have no need to

> > use RFC 4876.

> >

> Ah, indeed.  So if there were case-sensitive and case-insensitive attributes available (presumably in different auxiliary classes), you could use > those mapping constructs to choose the non-default variation.

>

> It doesn't look like you've got 4876 completely covered, though.  Attribute mapping is only one of the things it does - it also tells the clients which > servers to connect to and what authentication schemes to use.  If you're replacing 4876, there should be a plan for replacing that capability.



Yes I’ve not quite understood that.  You need to configure the client to talk to an LDAP server, in order

to obtain a profile that tells it to talk to a different LDAP server instead.  Why would you not just

configure the client to talk to the correct LDAP server in the first place?  Please explain the use-case.



> > Jordan Brown wrote:

> > > Mark Bannister wrote:

> > > > Btw, what was your plan for case sensitivity in filesystems?

> > >

> > > Baby steps :-)

> > >

> > > I do think that that's inevitable too, just not as soon as user names

> >

> > Wow.  Good luck with that.  (Boiling oceans comes to mind).

>

> I work in name services, not file systems, so it's not an active project.  I just think it'll happen eventually, that

> interoperability with Windows will force it.



I found an interesting discussion on this very subject:

https://news.ycombinator.com/item?id=8876722



Mark.




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