On Mon, 2009-07-13 at 15:47 -0400, Rob Kampen wrote: > Hi All, > I have an nfs mount from my CentOS 5.3 client to a CentOS5.3 server. > This has been functioning correctly for some years. > Beginning last week I had problems saving OpenOffice documents onto the > nfs mounted volume. > OpenOffice just times out with a file io error. > So I tried just a simple shell - cd to the mounted volume did a vi > create of text file - no problems. > tried a chmod +w on an owned file - returned okay but no change to the > permissions when checked with ls -l > tried sudo chmod +w on the same file and get > [rkampen at robsws p_494]$ sudo chmod +w 5887_cover.pdf > Password: > chmod: changing permissions of `5887_cover.pdf': Operation not permitted > yet using gnome file browser I can change permissions on these nfs > mounted files just fine - go figure. > > This did work in the past - so what has changed? > how do I check what version of nfs is actually working? > > [rkampen at robsws p_494]$ mount > 192.168.230.230:/NDG on /NDG type nfs (rw,noatime,intr,addr=192.168.230.230) > > Any thoughts? ---- man pages are your friends man exports Very often, it is not desirable that the root user on a client machine is also treated as root when accessing files on the NFS server. To this end, uid 0 is normally mapped to a different id: the so-called anonymous or nobody uid. This mode of operation (called ‘root squash- ing’) is the default, and can be turned off with no_root_squash. Craig -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.