Re: schema for NSS LDAP with not all accounts active
On Thursday 29 March 2001 22:33, Alexander Reelsen wrote:
> > > > Another question is, does anyone have any other suggestions for doing
> > > > such things?
> > >
> > > I would like to do this as well. If you authenticate using PAM and wnat
> > > to exclude users from using ftpd and ssh, but still give them pop3/imap
> > > accounts it would be nice to have such a thing without using
> > > pam_listfile. I think the easiest way would be to patch pam_ldap to
> > > support some sort of query arg in the /etc/pam.d/service file. Like
> > > 'query="popd=allowed"' or similar.
> >
> > Why not just make the shell /bin/false for when you want to stop ftp and
> > ssh, and make the shell /bin/true (and put /bin/true in /etc/shells) to
> > allow ftp but not ssh? This is the traditional method of doing such
> > things and it still works...
>
> That's not clean. And what you do with FTP and IMAP/POP? You don't need to
> have a shell for both, but you want to allow only one of those. Of course,
> yeah, I could have access lists for each of that service not stored in the
> LDAP tree, but looking up always elsewhere is quite a hassle.
> Or am I the only one who wants such a feature? That would amaze me...
>
> If there is the possibility to store and lookup some sort of "per-service"
> accesslist in the LDAP tree I would prefer that solution compared to the
> "hey, let's check what shell the user has" one.
Good point. The problem is that the NSS interface doesn't allow for such
things so you would have to use pam_ldap for all authentication (no big deal
just a minor PITA to change all the /etc/pam.d files and keep them
maintained). Then what we need is an option for pam-ldap to specify which
filter should be used.
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