On Tue, Jan 20, 2009 at 02:43:03PM +0100, Emmanuel Lesouef wrote:

> > > The problem is that when postfix receives/sends an email, it does a
> > > lookup in our LDAP proxy to get postfix's group and uid. This
> > > definitely ends up with a "0 entries found" which is not a problem
> > > because /etc/nsswitch.conf contains the following :
> > > 
> > > passwd:         compat ldap
> > > group:          compat ldap
> > > shadow:         compat ldap
> > > 
> > > Is there a way to tell postfix (and other services, as well) not to
> > > try ldap ?
> > 
> > Postfix does not look in /etc/nsswitch.conf. That is the job of
> > the getpwnam SYSTEM LIBRARY ROUTINE.
> > 
> >     Wietse
> 
> Ok. So I suppose I'll have to find what pam related issue this is
> related to.

PAM has nothing to do with this, your nsswitch.conf specifies use of
LDAP for getpwnam(3) and getgrnam(3).

> In my opinion, none of the system services should bind to ldap.

Don't put LDAP in nsswitch.conf if you don't want to use it, but then
of course your LDAP-listed users will have trouble logging in.

-- 
        Viktor.

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