====== Mapping UID and GID of local user to the mounted NFS share ======


First of all, enable is on the client and server:

<code>echo N > /sys/module/nfsd/parameters/nfs4_disable_idmapping</code>

<code>echo N > /sys/module/nfs/parameters/nfs4_disable_idmapping</code>

clean idmap cache and restart idmap daemon:

<code>sudo nfsidmap -c</code>
<code>sudo service rpcidmapd restart</code>
<code>sudo service nfs-idmapd restart</code>

My need restart NFS server and/or client...
<code>/etc/init.d/nfs-kernel-server restart</code>

Now on server and the client will send instead of numeric IDs string principals like bob@YOURDOMAIN.COM. You need to have bob account on the both hosts - client and server.

Nevertheless, the numeric ID's can be different.


**To make these changes permanent, create configuration files in /etc/modprobe.d/,**

on server (modprobe.d/nfsd.conf):

<code>options nfsd nfs4_disable_idmapping=N</code>
on client(s) (modprobe.d/nfs.conf):

<code>options nfs nfs4_disable_idmapping=N</code>