Palo Alto Networks firewalls support several methods for mapping users to IP addresses, which are critical for implementing user-based security policies:
eDirectory Monitoring: The firewall can monitor Novell eDirectory servers to map IP addresses to usernames by reading user login events from the eDirectory server. This method is often used in environments where eDirectory is the primary directory service (Palo Alto Networks) (Palo Alto Networks Knowledge Base).
Client Probing: This method involves the firewall sending probes to the client machines to verify user login information. Probing can use protocols like NetBIOS, WMI, or XFF headers to collect user-to-IP mapping information directly from the clients (Palo Alto Networks) (Palo Alto Networks).
Active Directory Monitoring: The firewall can monitor Microsoft Active Directory domain controllers to collect user login events. This method is widely used in environments where Active Directory is the primary directory service. It provides real-time user mapping by tracking user logins and logouts across the domain controllers (Palo Alto Networks) (Palo Alto Networks) (LIVEcommunity | Palo Alto Networks).
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