Explanation
The **IKE crypto profile** is used to set up the encryption and authentication algorithms used for the key exchange process in IKE Phase 1, and lifetime of the keys, which specifies how long the keys are valid. To invoke the profile, you must attach it to the IKE Gateway configuration. The **IPSec crypto profile** is invoked in IKE Phase 2. It specifies how the data is secured within the tunnel when Auto Key IKE is used to automatically generate keys for the IKE SAs.

Explanation
https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-admin/threat-prevention/wildfire-inline-ml/configure-wild
"The File Exceptions table allows you to define specific files that you do not want analyzed, such as false-positives. To create a new file exception entry, Add a new entry and provide the partial hash, filename, and description of the file that you want to exclude from enforcement."https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-web-interface-help/objects/objects-security-

Explanation
From the Palo Alto documentation below, "when a VPN is terminated on a Palo Alto firewall HA pair, not all IPSEC related information is synchronized between the firewalls... This is an expected behavior. IKE phase 1 SA information is NOT synchronized between the HA firewalls." And from the second link, "Data link (HA2) is used to sync sessions, forwarding tables, IPSec security associations, and ARP tables between firewalls in the HA pair. Data flow on the HA2 link is always unidirectional (except for the HA2 keep-alive). It flows from the active firewall to the passive firewall."
https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA14u000000HAuZCAW&lang=en_US%E
https://help.aryaka.com/display/public/KNOW/Palo+Alto+Networks+NFV+Technical+Brief

Explanation
The addresses used in destination NAT rules always refer to the original IP address in the packet (that is, the pre-translated address). The destination zone in the NAT rule is determined after the route lookup of the destination IP address in the original packet(that is, the pre-NAT destination IP address). The addresses in the security policy also refer to the IP address in the original packet (that is, the pre-NAT address). However, the destination zone is the zone where the end host is physically connected. In other words, the destination zone in the security rule is determined after the route lookup of the post-NAT destination IP address.https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/networking/nat/nat-configuration-examples/

Explanation
https://docs.paloaltonetworks.com/wildfire/u-v/wildfire-whats-new/latest-wildfire-cloud-features/wildfire-analys