Manfred, Thanks for the quick reply: your advice to use 'no_root_squash' solved my problem. I feel stupid because I read about that option but didn't understand what it did... Appreciate your help! Mark -----Original Message----- From: Manfred Alef [mailto:[log in to unmask]] Sent: vrijdag 17 november 2006 9:49 To: Mark Van Crombrugge Cc: [log in to unmask] Subject: Re: NFS chown/chgrp problem Mark Van Crombrugge wrote: > Dear all, > > I am using Scientific Linux 3.4 and activated an NFS link between two > servers, making available diskspace from bigserver2 to smallserver1. > > One userID is used for uploading datafiles to smallserver1 and another > is used for creating/editing webpages on that server. > Because this created access problems I created a group 'webdevelop' on > smallserver1 to contain these 2 users so they can access eachothers files. > After doing this, I discovered that executing the chgrp and chown > command on the files/directories on smallserver1 returns error message > "Operation not permitted". > > On smallserver1 I use the mount command: > bigserver2:/var/wwww/html/website on /var/www/html/website type nfs > (rw, > addr=ipaddress-of-bigserver2) > > I'm realy stuck and have spent about a day trying to solve/understand > this so any help is very welcome! The chgrp and chown commands require root permission. Add "no_root_squash" to /etc/exports on bigserver2. See 'man 5 exports" for more details. Or run chgrp and chown on bigserver2, not on smallserver1. Manfred Alef