On Thu, May 03, 2012 at 02:33:36PM -0700, Konstantin Olchanski wrote: > > I have observed some NFSv4 gyrations through SL6.0->6.1->6.2, but in 6.2, > I see NFSv4 work exactly the same as NFSv3, at least in the NIS+autofs > environement with either SL5 or SL6 NIS master. No firewall/iptables, > no selinux. > > In other words, for NFSv4 on SL6, I use exactly the same incantations > as for NFSv3 on SL5 - in /etc/exports, in /etc/auto.master, auto.home, etc. > > On the other hand, on an non-NIS cluster of SL6.1 machines, I had > to explicitely set "Domain=xxx" in /etc/idmapd.conf on each machine > and reboot, otherwise all NFS files show up with owner nobody.nobody. By chance do your NFS server & NFS clients have different DNS domainnames configured? Or, maybe the NFS server simply defines a different NFSv4 domainname than your clients' default DNS domainname? E.g. I have to set the (NFSv4) Domain in /etc/idmapd.conf at $WORK, due to the NFS server with my homedir being in a different DNS domain than my desktop. Whether the NFSv4 domain is defined separately, or the default value of DNS domainname is used, both client & server must have the same setting. IME when ownership comes up with nobody.nobody it's usually a mis-match between client & server NFSv4 domain names. Or rpc.idmapd is dead or otherwise out in the weeds. :-) Cheers, sr.