[K12OSN] NIS user authenticated OK but nothing works

[Martin Woolley]

Greetings and Felicitaions

we have an NIS problem which would appear from googling on various news groups 
that this has been an FAQ.  Shame it isn't a frequently answered question. 
:-)  I know that there a few NIS users in the LTSP community, so perhaps some 
one out there has seen this or a similar problem before.

We are running FC1, ypserv --version ypse
v (ypserv) 2.8 ypbind --version ypbind (ypbind-mt) 1.12  I setup NIS and users 
authenicate up to a point (ie they can login) but once they are logged in, 
they cannot access very much.  It would appear that this is because their uid 
is not being translated to a uname.  Here is a short terminal capture session 
(on a yp client) :-

[I have no name!@bart ahmeo04]$ id
uid=590 gid=100(users) groups=100(users)
[I have no name!@bart ahmeo04]$ ypmatch chris group
chris:x:500:
[I have no name!@bart ahmeo04]$ ypmatch 590 passwd.byuid
Can't match key 590 in map passwd.byuid. Reason: Internal NIS error
[I have no name!@bart ahmeo04]$ yppasswd
yppasswd: can't find the master ypserver: Internal NIS error
[I have no name!@bart ahmeo04]$

Note especially the "I have no name!"; this should display uname. If I am 
logged in as root, the ypmatch command above works fine :-

[root at bart root]# ypmatch 590 passwd.byuid
ahmeo04:eq8ubhpZrFqSU:590:100:Ahmed Omar:/home/LISA/ahmeo04:/bin/bash
[root at bart root]# echo $PS1
[\u@\h \W]\$

When I ran ypserv in debug mode, the following messages were displayed in 
response to the ypmatch command above (as the NIS authenticated user) :-

ypproc_match(): [From: 192.168.0.7:32955]
                domainname = "hgs.nis"
                mapname = "passwd.byname"
                keydat = "ahmeo04"
connect from 192.168.0.7
        -> Ignored (not a valid source host)

I have used the makedbm command to dump out the contents of the db files (on 
the server) and can see all of the data as it should be. So in a nutshell, 
only root is to be able to resolve the passwd maps through yp.  No regular 
user has access to them and as a consequence no one can change their password 
or indeed access any application that needs to resolve a uid to a uname. (eg 
open office, abiword, koffice, etc, etc).

If anyone knows how to mend this, would they please let me know?
-- 
Regards
Martin Woolley
ICT Support
Handsworth Grammar School
Isis Astarte Diana Hecate Demeter Kali Inanna



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