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Date:      Wed, 28 Oct 1998 12:21:23 +0100 (CET)
From:      Jeroen Ruigrok/Asmodai <asmodai@wxs.nl>
To:        Terry Lambert <terry@whistle.com>
Cc:        small@FreeBSD.ORG, Andrzej Bialecki <abial@nask.pl>
Subject:   Re: Unified Configuration Interface
Message-ID:  <XFMail.981028122123.asmodai@wxs.nl>
In-Reply-To: <3636195C.535@whistle.com>

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On 27-Oct-98 Terry Lambert wrote:
> [ ... transactional, possible to expose via standard protocol ... ]
> 
> Andrzej Bialecki wrote:
>> Sounds like a good idea (I mean, the transactional model).
>> Also, I would stress the word "possible" in the above statement
>> - thus far all implementations of LDAP or SNMP agents I've seen
>> are heavy-weight (from my point of view).
> 
> Mine too; I wasn't thinking in terms of a server, necessarily,
> though, since I could see the following from an embedded system:
> 
> 1)    SLP request: where is the LDAP server?
> 
> 2)    LDAP request: where is my configuration data?
> 
> 3)    <OTHER> request: Please manage me via data changes
>       in the LDAP data store, and tell me when changes
>       have taken place so I can reconfigure myself.

Have to read up on SLP, but afaik SLP will be/is used by Novell in NetWare 5
with Native IP to replace SAP. So if I may base my conclusions on SAP, it will
request per a broadcast certain servers/services, get a reply back and then use
those services via SLP or just by making TCP connections or just dumping UDP
datagrams? Correct me if I am wrong, but I don't have the time at the moment to
dig through that RFC.
 
> That would make it most probably a client implementation only.
> I mention ACAP because it's a fairly small client implementation
> as well.

Having used ACAP I can say it's a fun protocol ;)

> The main issue is that there needs to be someone, somewhere,
> to "be the king"; whether this just means a machine to export
> an NIS+ service, or whether this means SNMP or LDAP is undefined.

Well, ye mean here the MAster server that is the general backup provider
shouldst departemental/floor servers not be reachable? Or am I thinking in way
the wrong direction?

> [ ... List of ?RFC's specifying MIB's ... ]
> 
> ] Ugh.. Yeah.... This is pretty extensive list. But you make a
> ] good point...
> ] 
> ] What worries me, though, is that the only one (free)
> ] implementation of snmp agent that I'm aware of is, well, more
> ] than bulky...

Ok, but basing on the equipment we use at work (HP OpenView) I tend to prefer
SNMP in use with MIBs. Although we also write out own shellscripts for that.
 
>> I'm not familiar with LDAP that much... Is there any
>> implementation of it which takes less than, say, 200kB?
> 
> My current SLAPD (LDAP server) is 160k, linked shared against
> libc_r and libcrypt, so I think for a static version, the
> answer is probably "no" (but it could be crunched, and I
> don't know the impact of libc_r vs. libc on a crunched disk).

As far as I can see in future, we are going to have to make major modifications
to kernel sources and the likes... 

> But the point of mentioning RFC 2307 wasn't to specifically
> advocate LDAP; it was to point at a MIB that defines most of
> the things needed for storing all NIS+ data.  The MIB is, as
> above, schema information, totally seperate from implementation.

Heh, schema sounds so alike to Novell's NDS schema ;)

---
Jeroen Ruigrok van der Werven/Asmodai
asmodai(at)wxs.nl
Junior Network/Security Specialist
FreeBSD & picoBSD: The Power to Serve...

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