*BSD News Article 52861


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From: se@MI.Uni-Koeln.DE (Stefan Esser)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: 2.0.5 -> NFS -> Linux: some files inaccessable
Date: 18 Oct 1995 19:36:52 GMT
Organization: Institute for Mathematics, University of Cologne, Germany
Lines: 22
Message-ID: <463l0k$n55@news.rrz.uni-koeln.de>
References: <jshiffleDGMEJB.ME2@netcom.com>
NNTP-Posting-Host: sysiphos.mi.uni-koeln.de
Keywords: tape linux backup nfs
To: jshiffle@netcom.com (John Shifflett)

In article <jshiffleDGMEJB.ME2@netcom.com>, jshiffle@netcom.com (John Shifflett) writes:
|> When I mount 2.0.5 partitions on a Linux machine (using NFS), files
|> and directories owned by root are not readable. Since my DAT drive is
|> on the Linux computer, I need _everything_ available through NFS so I
|> can make tape backups. (Yes, I'm mounting and attempting to read as
|> root). Is there something special I need to do to get this happening?
|> (Other _Linux_ computers mounted via NFS don't have this limitation.)

This is a security feature of FreeBSD 
(found on most other UNIX systems, too).

You need a "-maproot=root LinuxHost" option
in /etc/exports for each file system ...

See "man 5 exports" ...

Regards, STefan
-- 
 Stefan Esser, Zentrum fuer Paralleles Rechnen		Tel:	+49 221 4706021
 Universitaet zu Koeln, Weyertal 80, 50931 Koeln	FAX:	+49 221 4705160
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 http://www.zpr.uni-koeln.de/staff/esser/esser.html	  <se@ZPR.Uni-Koeln.DE>