ACLs and nfsmapid in NFS Version 4

An access control list (ACL) provides file security by enabling the owner of a file to define file permissions for the file owner, the group, and other specific users and groups. You can set ACLs on the server and the client by using the chmod command. For more information, see the chmod(1) man page. In NFS Version 4, the ID mapper, nfsmapid, is used to map user IDs or group IDs in ACL entries on a server to user IDs or group IDs in ACL entries on a client. The reverse is also true: The user and group IDs in the ACL entries must exist on both the client and the server.

For more information about ACLs and nfsmapid, see the following:

• Setting ACLs on ZFS Files in Securing Files and Verifying File Integrity in Oracle Solaris 11.4

• NFS Daemons