On Tue, Mar 13, 2007 at 10:01:09AM +0200, Jonathan McKeown wrote:
> On Tuesday 13 March 2007 09:16, Gerhard Schmidt wrote:
> > On Tue, Mar 13, 2007 at 12:07:15AM +0100, Pietro Cerutti wrote:
> > > On 3/12/07, Gerhard Schmidt <[EMAIL PROTECTED]> wrote:
> > > >Hi,
> > >
> > > Hello,
> > >
> > > >As I see it, nss asks all sources even if the frist one allready knows
> > > > the answer. Is there a way to change this.
> > >
> > > man nsswitch.conf(5)
> > > Look for Status codes and Actions
> >
> > Doesn't work. Tried the follwing nsswitch.conf
> > group: files [success=return] ldap
> > hosts: files dns
> > networks: files
> > passwd: files [success=return] ldap
> > shells: files
> >
> > This doesn't change the delay. And the nss_ldap timeout is still reported.
> > This is not supprising because the manpage states [success=return] is
> > default.
> >
> > Seams there is a bug somewhere.
> 
> It's a well-known problem rather than a bug, and it arises when looking up 
> group information for a user. The system needs a list of all the groups the 
> user is a member of. Since it's a list, not a single answer, you can't 
> short-circuit the process with ``success'' after finding a single result: 
> initgroups(3) must work through all possible sources of group information to 
> build the list.

I think its still a bug. You are right that all groups should be found so 
the default for groups should be success=continue to have this done. But 
when I explicily specify that on success the process should abort, it
should be done exacly this way. 

> The only ``workaround'' I've seen suggested is the parameter introduced 
> recently in nss_ldap:
> 
> nss_initgroups_ignoreusers
> 
> It takes a comma-separated list of users for whom the nss_ldap initgroups 
> routine should immediately return NSS_STATUS_NOTFOUND. If you keep group 
> information for all the system users in /etc/group only, and add them all to 
> this line in nss_ldap.conf, it should remove the problem. (Warning: I haven't 
> tested this).

This may fix the problem with nss_ldap but its still there with other
modules. 

Bye
        Estartu

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Gerhard Schmidt    | Nick : estartu      IRC : Estartu  |
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