Default values for protection attributes are specified and stored in attribute guards (guards of type DEFPATTR) and continue to apply across sessions.
Default values for protection attributes are defined in two steps:
creation of guards (see "Guards administration")
entry of the protection attribute default values in the guards
Users can create an unlimited number of attribute guards with different names under their user IDs. Each of these guards contains a record specifying the protection attribute default values.
Entering default values for protection attributes
The following commands are available for processing and administering these attribute guards. These commands are not RFA-compatible:
ADD-DEFAULT-PROTECTION-ATTR | Enter default values for protection attributes |
MODIFY-DEFAULT-PROTECTION-ATTR | Modify default values for protection attributes |
SHOW-DEFAULT-PROTECTION-ATTR | Display default values for protection attributes |
The general GUARDS administration commands (see "Guards administration") are also available for the administration of attribute guards.
Default values can be set for the following protection attributes
Protection attribute: | Meaning: | Priority: |
GUARDS | Access protection controlled by nameable guards of type STDAC. | |
BASIC-ACL | Access protection controlled by basic access control lists (BACL) for which special settings are possible. | GUARDS |
USER-ACCESS | Type of availability (e.g. owners only or all users in the system). | GUARDS |
ACCESS | Type of access. For example, read or write. | GUARDS |
WRITE-PASSWORD | Definition of a write password. | |
READ-PASSWORD | Definition of a read password. | |
EXEC-PASSWORD | Definition of an execute password. | |
DESTROY-BY-DELETE | Data is overwritten with binary zero when deleted. | |
SPACE-RELEASE-LOCK | Rule governing the release of storage space. | |
EXPIRATION-DATE | Rule governing the period during which the file can be neither modified nor deleted. | |
FREE-FOR-DELETION | Rule permitting the deletion of a file after a given time without it being necessary to consider any protection attributes. |