Most permissive permission always applies. So here, client will get RW from the "rw=-123.123.4.0/24" statement. ro will be dropped as client gets most permissive permission when conflict.
 
Try it! You can also play with 'exportfs -c' (I think "-c" is the arg - give it a client name and it will show you what exported and how)
 
Best regards,
~~~~~~~~~~~~~~~~
Kevin Parker
Mobile: 919.606.8737
http://theparkerz.com
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From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Conner, Neil
Sent: Thursday, May 08, 2008 6:28 PM
To: Toasters
Subject: Exports file

I want configure an exports file to grant a client ro access when I’ve excluded the subnet the client belongs to from rw access.

The man page reads: “You cannot exclude an NFS client identifier from the ro= or rw= option and include the same NFS client identifier in the other option”, but I’m wondering if that restriction applies to subnets.

This is what I have now:

/vol/vol0/dir1    -sec=sys,rw=-123.123.4.0/24:123.123.0.0/16,root=adminhost

And I want something like this:

/vol/vol0/dir1    -sec=sys,ro=123.123.4.4,rw=-123.123.4.0/24:123.123.0.0/16,root=adminhost

Is this possible?