NIS+ and netgroups and automount maps
2007-12-25 8:07:00
> I seem to be running into a problem with NIS+ and netgroups. I have
> the following in my passwd file on my fileserver:
>
> noaccess:x:60002:60002:uid no access:/:
> +@robert::0:0:::
> +@staff::0:0:::/usr/local/bin/noshell
>
> This is so that I can login to the server but nobody else can.
> I also have the nsswitch.conf setup as:
>
> passwd: compat nisplus
> group: files nisplus
> netgroup: nisplus
>
> and the robert netgroup being:
>
> robert (,robert,)
>
> With this setup when I type 'ls ~robert' I'm told no such user robert
> and an ls -l listing of /export/home (~50 users) takes forever, but if I
> change nsswitch.conf to
>
> netgroup: nis
>
> then things return to normal. The NIS+ netgroup was loaded from the
> same file that NIS uses.
>
> The SUN manuals also mention that using 'passwd: files nisplus' is a
> replacement for using netgroups but how do you handle my situation
> where you need to restrict access to certain machines? Another example
> would be our university having a global passwd file to get unique uid's
> but then our department only wanting to allow access to staff and students
> within our department. Can NIS+ handle this without resort to netgroups?
>
> I am also having a problem with automount maps. Under NIS I can start
> the automounter without an /etc/auto.master file and it will pickup auto.master
> and auto.home from NIS. However with NIS+ I get a warning message from
> the automounter and then it just aborts but if I edit nsswitch.conf to
> tell the automounter to use NIS it works fine. The auto_master file is:
>
> /stage auto_stage -rw,intr,soft
> /home auto_home -rw,intr,soft
> /net -hosts -rw,intr,soft
>
> where auto_home and auto_stage are either NIS or NIS+ maps.
> The error message is something like: Warning map hosts option -rw ignored.
> The warning message and the aborting could be unrelated but I get no other
> message from the autmounter.
>
Well I received several responses to my second problem which is now
solved, but no answers to my first query. The answer to the automount
problem is that I had two tabs seperating fields in the maps when NIS+
will only accept one tab. This seems to me to be both very slack
programming, and a bug. Thanks to Peter Young who supplied the winning
response.
Also thanks to the following people for their responses:
From: Christian Lawrence <cal@soac.bellcore.com>
From: silver!jennine@uunet.uu.net (Jennine Townsend)
From: pjy@merlin.anu.edu.au (Peter Young)
Robert Ruge ACSNET: robert@Deakin.Edu.Au
School of Computing & Mathematics PHONE: +61 52 271319
Deakin University
Geelong, Victoria, 3217
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