Install quota-rpc and activate rpcbind to allow quota queries from nodes other than the NFS server

[mboisson]

In principle:

sudo yum install quota-rpc
sudo systemctl unmask rpcbind
sudo systemctl unmask rpcbind.socket
sudo systemctl start rpc-rquotad

on the NFS server. However, from RedHat's documentation, it needs securing:

The rpcbind service is a dynamic port assignment daemon for RPC services such as NIS and NFS. It has weak authentication mechanisms and has the ability to assign a wide range of ports for the services it controls. For these reasons, it is difficult to secure.

See https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/security_guide/sec-securing_services#sec-Securing_rpcbind