With kernel-2.6.22.1-27.fc7, I got [root@lake testsuite]# /etc/init.d/nfs start Starting NFS services: [ OK ] Starting NFS quotas: Cannot register service: RPC: Authentication error; why = Client credential too weak rpc.rquotad: unable to register (RQUOTAPROG, RQUOTAVERS, udp). [FAILED] Starting NFS daemon: [FAILED] Starting NFS mountd: Cannot register service: RPC: Authentication error; why = Client credential too weak [FAILED] [root@lake testsuite]# dmesg ... call_verify: server localhost requires stronger authentication. RPC: failed to contact local rpcbind server (errno 13). I have 2 interfaces, eth0 and eth1. nfs-utils doesn't use loopback interface and I have to put RPCBIND_ARGS="-i" in /etc/sysconfig/rpcbind. bash-3.2$ man rpcbind ... -i “Insecure” mode. Allow calls to SET and UNSET from any host. Normally rpcbind accepts these requests only from the loopback interface for security reasons. This change is necessary for programs that were compiled with earlier versions of the rpc library and do not make those requests using the loopback inter- face.
With kernel-2.6.24-2.fc9, this bug is fixed. [root@bensley-fedora9 ~]# /etc/init.d/nfs restart Shutting down NFS mountd: [ OK ] Shutting down NFS daemon: [ OK ] Shutting down NFS quotas: [ OK ] Shutting down NFS services: [ OK ] Starting NFS services: [ OK ] Starting NFS quotas: [ OK ] Starting NFS daemon: [ OK ] Starting NFS mountd: [ OK ]