I have a large NFS shared storage system in my equipment rack. My operation is bringing up a number of other Linux systems that use the NFS system as the primary production storage.
Sometimes the storage is shared and also I want to be able to bring up and import various VMs as projects proceed. The problem I see developing is that NFS does not attempt to qualify the authentication of its client systems' users If UID=1234 is Alice on one system and another uses UID=1234 for Bob the file system their file permissions are the same as far as the NFS system is concerned.
How is this problem generally handled in the NFS world?