Palo Alto Certifications and Accreditations PCNSE Updated Exam

To collect User-ID information from third-party proxies, Palo Alto Networks supports several methods of integrating user information. Syslog parsing allows the firewall to receive syslog messages from external services, parse them, and extract user information. X-Forwarded-For (XFF) headers, which are used in HTTP requests and proxies, can carry the original IP address of a client connecting through a proxy, and this information can be used by the firewall to map the user IDs.

Syslog is commonly used for integrating third-party devices like proxies with User-ID, and XFF headers are specifically mentioned in the context of integrating user mappings from HTTP traffic. Client probing and Server Monitoring are not the correct methods for pulling data from third-party proxies.For further details, refer to the Palo Alto Networks documentation on User-ID integration and the "PAN-OS® Administrator’s Guide".

https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-admin/high-availability/set-up-activeactive-ha/prerequisites-for-activeactive-ha

These are the two links that can be used to configure an active/active high availability pair. An active/active high availability pair consists of two firewalls that are both active and share the traffic load between them1. To configure an active/active high availability pair, the following links are required2:

HA1: This is the control link that is used for exchanging heartbeat messages and configuration synchronization between the firewalls. It can be a dedicated interface or a subinterface. It can also have a backup link for redundancy.

HA2: This is the data link that is used for forwarding sessions from one firewall to another in case of failover or load balancing. It can be a dedicated interface or a subinterface. It can also have a backup link for redundancy.

HA3: This is the session owner synchronization link that is used for synchronizing session information between the firewalls in different virtual systems. It can be a dedicated interface or a subinterface. It is only required for active/active high availability pairs, not for active/passive pairs.