Path: utzoo!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!pasteur!ames!sgi!root@tread.SGI.COM
From: root@tread.SGI.COM (0000-Admin(0000))
Newsgroups: comp.sys.sgi
Subject: Re: question on NFS
Message-ID: <21478@sgi.SGI.COM>
Date: 1 Nov 88 23:59:58 GMT
Sender: daemon@sgi.SGI.COM
Organization: Silicon Graphics, Inc., Mountain View, CA
Lines: 20


  Yes, it is possible to have a file system exported on a read-only basis
to some nodes and read-write to others, but not in SGI release 3.6 for the
3000 series. This enhancement to exporting did not appear until Sun's 4.0 
release and SGI's 4D3.1 release. 

  The new /etc/exports format allows you to specify:

        /usr/src     -rw=hostA:hostB:hostC

which gives hostA, hostB, and hostC read-write access to the server's 
/usr/src tree and read-only access to everyone else. See exports(4), 
rw= option, and exportfs(1M).

  It should be noted that using multiple entries for a given file system in
/etc/exports in an attempt to export to different clients with different 
options is not supported. If you'd like more detailed information as to 
what is going on, you can look at /usr/adm/syslog which is where mountd 
reports its problems.

  Dana Treadwell