Mapping NFS User ID between Linux and FreeNAS/TrueNAS/FreeBSD

I want to mount a NSF share exported on a FreeNAS/TrueNAS/FreeBSD system  on a Fedora Linux system. These two systems have their own independent user  IDs and domains. To display the user name of the NSF share as a user name on the client, I figure that I need to use nfsidmap. For this, I need to solve the following problems.

1. Map the Linux client's NSF domain to that of the FreeNAS/TrueNAS/FreeBSD server. For this, I need to find out the domain name of the FreeNAS/TrueNAS/FreeBSD server. On the server, open a console/terminal, issue the following command

   hostname -d        

   Assume the output is local. We can check whether this matches the NSF domain on the Linux client side, by running the following command on the client side,

   sudo nfsidmap -d 

2. Map the Linux client's user to that of the FreeNAS/TrueNAS/FreeBSD server. For this, I update /etc/idmapd.conf

Finally, I update the Linux client's /etc/idmapd.conf configuration file. Below is an example.

[General]
Domain = local # use the output of "hostname -d" on the server side

[Mapping]
Nobody-User = nobody
Nobody-Group = nobody
        
[Translation]

[Static]
server_user1@local=client_user1