On Nov 11th I sent out the following:
Fellow Managers:
I have a Sun 4/75 running 4.1.1 with only the security patches installed.
Although I can login to root, I am immediately confronted by the "login:"
prompt again.
An "su" to root causes an "illegal instruction". (su'ing to myself, however,
works). the "su" is recorded as successful in the logs. Various root-level
daemons are also failing.
Ordinary uers can log at will but Xterminals supported through xdm have the
same problem for all users: they are immediately bounced back to "login:".
etc..............
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There were zero responses but in the past week it has been fixed (Sun
phone support was helpful) although the exact cause remains unknown. I
learned that, in general, if there is a "problem from Mars" NIS is a good
place to start looking :-).
In particular: deleting the YP database entirely on the machine (it was a
slave server) and reinitializing it turned the trick. _Deleteing the
previous NIS database was necessary_ although the machine usually bound
itself to a different YP server. I hadn't included in initial report that
the primary NIS server was reporting problems updating the NIS database on
the slave server over the previous week.
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:06:16 CDT