[Q] NIS netgroup and `id -un` - additional

From: Ian Mortimer <ian_at_physics.uq.edu.au>
Date: Fri, 22 Jan 1999 09:13:27 +1000

Hi DU Admins

I noticed the id -un problem late yesterday but this morning
I found a few more problems so I'll try again:

I've just implemented a NIS netgroup to restrict access to a
cluster of workstations.The netgroup is included like this
in /etc/passwd:

   +_at_lusers:

Previously it had the full NIS passwd map added with "+:".

Now `id -un` gets `Could not get "user" information', whoami
gets `Intruder alert' and ls -l shows the uid instead of the
user name.

Users (in the netgroup) can login; w, who, who -m, and who am i
are all correct; id -u shows the correct uid; sendmail recognizes
the users as local; /var/adm/sialog reports "Successful session
authentication for _user_".

It seems like this is the behaviour you would get when the effective
user ID is not in /etc/passwd. It's not literally there but is
supposed to be added by the "+_at_lusers:". This works okay with "+:"
so does anyone know why it doesn't work with the netgroup?

Things I tried which made no difference:

   Removed passwd.dir and passwd.pag.
   Rebuilt passwd.dir and passwd.pag.
   Tried "+_at_lusers::::::".
   Tried "+_at_lusers::0:0:::".

The quick fix is to not use the netgroup but add each user individually
to /etc/passwd like this:

   +user_1:
   +user_2:
   ...
   +user_n:

While this works it has to be done for every user on every host in the
cluster. The netgroup would be a lot easier to manage if I could get
it to work properly.

Any suggestions as to what else I can try?


Thanks
Ian

_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
_/ Ian Mortimer _/
_/ ian_at_physics.uq.edu.au ,-_|\ Department of Physics _/
_/ Tel: +61 7 3365 3436 / *\ University of Queensland _/
_/ Fax: +61 7 3365 1242 \_,-._/ St. Lucia, Brisbane _/
_/ v Queensland, Australia 4072 _/
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
Disclaimer: Speaking only for myself.
Received on Thu Jan 21 1999 - 23:14:19 NZDT

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