Securing NFS access using export policies

You can use export policies to restrict NFS access to volumes or qtrees to clients that match specific parameters. When provisioning new storage, you can use an existing policy and rules, add rules to an existing policy, or create a new policy and rules. You can also check the configuration of export policies

Note: Beginning in ONTAP 9.3, you can enable export policy configuration checking as a background job that records any rules violations in an error rule list. The vserver export-policy config-checker commands invoke the checker and display results, which you can use to verify your configuration and delete erroneous rules from the policy.

The commands only validate export configuration for host names, netgroups, and anonymous users.