NIS+ linux box root getting root master ???

[Mauricio Brigato]

This is my situation:
- I have a NIS+ server SUN. This is the main server of my net. (NFS, web,
etc.)
- I have 6 linux box (Red Hat 7.1/7.2/7.3, Slackware 8.1) and 4 Sun clients of 
NIS+, but servers.

If I log as root on a linux box, and make a su - <user-of-home-NIS+> I got 
ok.
But, how I block these user ? 
I don't want that my user on a linux box have access to all others users
from my domain!

Please help.
Thanx in advance.

-------------------------------------------------------------
      Mauricio Brigato
      System Administrator - BIT - BioInformatic Team
      Fundação Hemocentro de Ribeirão Preto
      Phone: +55 16 3963-9300    Fax: +55 16 3963-9309
      E-mail: mauricio at bit.fmrp.usp.br
      Homepage: http://bit.fmrp.usp.br/
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---------- Original Message -----------
From: Darrel Hankerson <hankedr at dms.auburn.edu>
To: mauricio at gordon.fmrp.usp.br
Sent: Mon, 9 Sep 2002 08:50:47 -0500
Subject: Re: NIS+ linux box root getting root master ???

> > > I don't know why, every linux box which I put
>    > > on NIS+ got the privileges of root master with
>    > > linux box root login, via su - <user-of-home-nis+>.
> 
> Depending on what you mean, this is expected.  There is no keylogin,
> so anything that requires credentials fails.  But you will get access
> to ordinary user files this way.
> 
> --Darrel Hankerson hankedr at auburn.edu
------- End of Original Message -------

mauricio at bit.fmrp.usp.br