[Kroupware] LDAP address book schema suggestion

[Martin Konold]

On Sunday 29 September 2002 10:11 pm, Tobias Koenig wrote:

Hi,

> > do you think that 9 characters are enough?
>
> Every character can be [A-Za-z0-9], that means there are 62^9
> possebilities. There can be collisions with a possebility of 1:(62^9)/2
> Is this enough?
>
> We could also use a 15 character long uid.

Well, basically I want a readable uid for kolab. Cyrus allows for a maxim=
um of=20
255 characters.=20

I will append a FAQ (the FAQ will soon be available on kroupware.kde.org)=
=20
which might bring some better explanation:

Question: How do we intend to provide multi domain support with kolab

Answer:
Basically cyrus imapd does not know about multiple domains but only about
uids.

We assume that email addresses are globally unique and create the uid wit=
h
this algorithm.

Create an email alias according to the firstname.lastname@domain template=
=2E
If there is a naming collision e.g. hans.maier@domain does already propos=
e an
alternativ via firstname.lastname<number>@domain. In addition the
administrator is allowed to change this proposal (e.g. introducing a midd=
le
name or using suffixes or prefixes like jr, sen etc).
The admin GUI takes care that the finally chosen email alias is unique
before accepting to create the account.

The users email address is then normally firstname.lastname@domain.

After the email alias is guaranteed to be unique we do create the imapd
uid according to the following scheme:

uid=3Dunique email alias with dots and @ replaced by underscores.

Example:

Account:
        First Name: Hans
        Last Name: Maier
        Domain: kde.org

Create Email Alias:
        hans.maier@kde.org

If there is a naming collision with this email alias propose
        hans.maier2@kde.org
to the administrator

Imagine the administrator accepts this proposal.

Check that the new alias is unique and then create the imapd uid as

hans_mayer2_kde_org

The user will then be told the following data:

email address: hans.maier2@kde.org
kolab_uid: hans_mayer2_kde_org
kolab_password: Initial password set by administrator
kolab_server: dns name of kolab server e.g. kolab.kde.org


Yours,
--martin

Dipl.-Phys. Martin Konold
e r f r a k o n
Erlewein, Frank, Konold & Partner - Beratende Ingenieure und Physiker
Germanenstrasse 15, 70563 Stuttgart, Germany
email: martin.konold@erfrakon.de