In a PAM configuration file, which of the following is true about the required control flag?
In a PAM configuration file, which of the following is true about the required control flag?
The required control flag in a PAM configuration file means that the success of the module is needed for the module-type facility to succeed. However, all remaining modules of the same type will still be invoked even if this module fails. This ensures that the process evaluates each module before determining the final outcome of the authentication or operation.
C is correct! CONTROL Indicates the behavior of a PAM module. Each module can have the following control flags: -required: A module with this flag must be successfully processed before the authentication may proceed. After the failure of a module with the required flag, all other modules with the same flag are processed before the user receives a message about the failure of the authentication attempt. Ref.1. : https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/managing_smart_cards/pam_configuration_files Ref.2. : https://documentation.suse.com/sles/12-SP4/html/SLES-all/cha-pam.html
https://docs.oracle.com/cd/E19683-01/816-4883/pam-36/index.html