Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!spool.mu.edu!uunet!virtech!cpcahil
From: cpcahil@virtech.uucp (Conor P. Cahill)
Newsgroups: comp.unix.sysv386
Subject: Re: Remote permissions for NFS backup
Message-ID: <1991Feb26.031020.16744@virtech.uucp>
Date: 26 Feb 91 03:10:20 GMT
References: <1991Feb25.191542.29887@eecs.wsu.edu>
Organization: Virtual Technologies Inc.
Lines: 21

swetik@eecs.wsu.edu (Paul Swetik) writes:
>Having recently installed ISC (via Dell) NFS, I have not been able
>to backup files cleanly across the net. Is there a clean way to
>gain read permission for root on a client machine to backup NFS

The problem is that root user's are mapped to "nobody" when they
try to access files/directories on an NFS mounted partition.  The
fix is to set the value of nobody to zero (the value of the root id)
and voila you get full root privileges.  It should be noted that there
are security reasons that root access is mapped to nobody, so changing
this value may effect the security of your system.

A while back I posted source to "kernmod" which allows you to change
the "nobody" id in the kernel to be zero, so root users accessing
exported file systems get root privileges.   If you don't have 
it, let me know & I will send it to you.

-- 
Conor P. Cahill            (703)430-9247        Virtual Technologies, Inc.
uunet!virtech!cpcahil                           46030 Manekin Plaza, Suite 160
                                                Sterling, VA 22170