userid and multidomain

[Bernhard Reiter]

On Friday 10 September 2004 03:40, Jean-Michel Dault wrote:
> Le jeu 09/09/2004 à 10:32, Bernhard Reiter a écrit :
> > We talk about two different multidomain funcationalities here.
> > What we call multidomain would allow a seperated maintenace
> > of several companies on one server. For this they must be completely
> > seperated in LDAP and acls, mailboxes and so on.
> > Many other people talk about accepting emails for one
> > user with different domains. (Anybody has a nice name for it,
> > not being "multidomain"? ;) )
>
> Actually three functionalities here:
> 1) virtual domains (email at domain1 is another user than email at domain2)
> 2) virtual domains with separate admins for each domain
> 3) multidomain (email at domain1 is same user as email at domain2)

I am used to call 1+2 "multidomain".
Of course 3) is a lot easier to do.

> > > I don't understand why kolab insists on having user at domain. It means
> > > you can't use Kolab for pam_ldap, samba, etc.
> >
> > I think you could use "user at domain" for samba and other authenficiation
> > uses,
>
> To be compatible with the IEEE Std 1003.1-2001, usernames may only
> contain letters, numbers, period, underscore and hyphen. Not conforming
> to that standard might break a lot of things. For example, I can't
> authenticate with pam_ldap with an @ sign in a username.

Thanks for the information, I did not know this.
Though this is not allowed by the standard, it might get used by more
and more people because of the usability advantages.

> The DN can be user at host, no problem, we can tell cyrus to use the e-mail
> for authentication, but the uid attribute has to be posix compliant.

Current Kolab2 Server does allow for that uid so we do not run into problems.
I agree that using x at some  as a unix user name might pose problems.
Martin: What are your thoughts about this?
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