What permission is necessary for all Active Directory users for Delegated Authentication to work with the Okta Agent?

For Delegated Authentication to function correctly with the Okta Agent, it is essential that all Active Directory users have the permission to "Access this computer from the network." This permission enables users to authenticate when they log in to their accounts via networked resources, which is crucial for the Okta Agent to perform its role in verifying user credentials against the Active Directory.

By granting this permission, you ensure that the Okta Agent is capable of receiving authentication requests from users and effectively processing them against the Active Directory, thus maintaining the integrity and security of the authentication process.

The other options do not fulfill the requirements for Delegated Authentication in the manner that access from the network does. For instance, while "Read access to user profiles" or "Modify access to group memberships" may be useful for managing user attributes or membership operations, they do not directly relate to the capability needed for authentication processes. Similarly, "Log on locally" would allow users to log in directly at the machine but does not support the network authentication that Delegated Authentication relies on.