Access Control Lists
Solaris 9 extends the standard Unix file permissions by adding an Access Control List (ACL) capability. ACLs provide the capability to add permissions for specific users and groups, along with a default permission (mask).
In addition to supporting the standard read/write/execute permissions for the standard file user account (owner), ACLs can be used to set read/write/execute permissions for additional user accounts. Likewise, ACLs support read/write/execute permissions for the standard file group account and allow read/write/execution permissions for additional group accounts. ACLs also support read/write/execution for the standard permissions (everyone else).
ACLs also include a mask capability that controls the maximum ...