*BSD News Article 20215


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From: tim@introl.com (Tim Chase)
Newsgroups: comp.os.386bsd.questions,comp.os.386bsd.bugs
Subject: Re: NETBSD 0.9 NFS AUTHENTICATION ( A PROBLEM)
Date: 30 Aug 1993 16:22:57 -0500
Organization: Introl Corp.
Lines: 21
Distribution: world
Message-ID: <25tr3h$ade@ss1.introl.com>
References: <25t7p9INN6lq@darkstar.ucsc.edu>
NNTP-Posting-Host: ss1.introl.com

In article <25t7p9INN6lq@darkstar.ucsc.edu> buhrow@cats.ucsc.edu (Brian Buhrow) writes:
>
>...
>	Does anyone in the know of the basics of the 0.8 and 0.9 kernels know
>what may have changed to cause this big problem?  Did someone try to use
>effective uids in the ucred structures of the nfs requests rather than the
>real uid?  Or, vice versa?  
>...

This is just a follow-on question regarding this, I don't have any answers
(yet).  I just discovered that under 0.9 and 0.9-current I can't run
xterms anymore that need to access the .Xauthority file via NFS.
I have no Idea whether this worked under 0.8 or, for that matter,
under 386BSD.  I'll whip up a test program shortly, but it sure seems
like a suid-root program that changes its id to that of the original
user can't access that user's private files over NFS.


-- 
Tim Chase		           Introl Corp. Milwaukee, WI USA
Email: tim@introl.com		   Phone: +1 (414) 327-7171