The exportfs command

Describes the exportfs command.

The exportfs command lets an administrator export or unexport directories selectively, without needing to restart the NFS service. When provided with the appropriate options, the exportfs command writes the exported directories to the /var/lib/nfs/etab file.

Changes to the list of exported directories are effective immediately because the nfs-mountd service refers to the etab file for a specific directory's access privileges.