How can I use IBM i authorization lists to control access?

IBM i (AS400/iSeries) authorization lists are a powerful tool for controlling access to objects within your system. Let’s explore how you can effectively use them:

1. Understanding Authorization Lists:

• An authorization list is an object that contains a list of user profiles and their associated object authorities.
• By granting or denying access to the authorization list, you control access to all objects covered by that list.
• Authorization lists provide a layer of abstraction between users and objects, simplifying security management.

1. Creating an Authorization List:

• To create an authorization list, use the CRTAUTL command.
• Specify the list’s name, description, and any initial user profiles you want to include.
• For example:
  shell CRTAUTL AUTL(MYLIB/MYAUTL) TEXT('My Authorization List') AUT(*EXCLUDE) OBJAUT(*ALL)
  This creates an authorization list named MYAUTL in library MYLIB, excluding all users initially.

1. Adding User Profiles:

• Use the ADDAUTLE command to add user profiles to an authorization list.
• For example:
  shell ADDAUTLE AUTL(MYLIB/MYAUTL) USER(USER1) AUT(*USE)
  This grants use authority to USER1 for all objects covered by MYAUTL.

1. Assigning Authorization Lists to Objects:

• Use the CHGOBJAUT command to assign an authorization list to an object.
• For example:
  shell CHGOBJAUT OBJ(MYLIB/MYFILE) OBJTYPE(*FILE) AUTL(MYLIB/MYAUTL)
  This associates MYAUTL with the file MYFILE.

1. Checking Authorization List Entries:

• Use the DSPAUTLE command to display the contents of an authorization list.
• For example:
  shell DSPAUTLE AUTL(MYLIB/MYAUTL)
  This shows the user profiles and their associated authorities in MYAUTL.

1. Reviewing and Maintaining:

• Regularly review and update your authorization lists.
• Remove or modify user profiles as needed.
• Ensure that only authorized users have access to critical objects.

Remember that authorization lists provide a flexible and efficient way to manage security. By using them effectively, you can control access to your IBM i objects with precision. If you need further assistance or have specific scenarios, feel free to ask in the comment section!