[Dovecot] Multiple userdb possible?

[/dev/rob0]

On Tue, Feb 07, 2012 at 12:07:56PM +0200, Nikolaos Milas wrote:
> I am running v2.0.13. In my dovecot.conf I have:
> 
> userdb {
>   args = /etc/dovecot/dovecot-usrdb-ldap.conf
>   driver = ldap
> }
> 
> passdb {
>   args = /etc/dovecot/dovecot-passdb-ldap.conf
>   driver = ldap
> }
> 
> Is it legitimate to include multiple ldap userdb's, like:

Of course. The driver chosen is not significant; the query used is 
all that matters. Having two LDAP searches is conceptually no 
different than having system users and SQL users.

> userdb {
>   args = /etc/dovecot/dovecot-usrdb-ldap1.conf
>   driver = ldap
> }
> 
> passdb {
>   args = /etc/dovecot/dovecot-passdb-ldap1.conf
>   driver = ldap
> }
> 
> userdb {
>   args = /etc/dovecot/dovecot-usrdb-ldap2.conf
>   driver = ldap
> }
> 
> passdb {
>   args = /etc/dovecot/dovecot-passdb-ldap2.conf
>   driver = ldap
> }
> 
> If it is legitimate (in case configuration is different, please
> correct me), in which sequence userdb's are evaluated?

In the order specified. A /etc/dovecot/dovecot-usrdb-ldap1.conf match 
prevents searching in /etc/dovecot/dovecot-usrdb-ldap2.conf; keep 
this in mind in setting up the queries.
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