By default - Server Log Monitor Frequency (sec) - 2
By default - Enable Session - disabled

Palo Alto Networks firewall protection is based on application intelligence, so in the case of TCP, a TCP session must be established before the application can be discovered. However, after a TCP session has been established, silent dropping of packets without sending a TCP reset can be dangerous. The "drop" action could break the application and cause it to misbehave. An application might hang, continue to send packets, or unnecessarily hold system resources open.
Therefore, the default "deny" action defined for more than half of the applications recognized by the firewall is to send a TCP reset.

An application filter is an object that dynamically groups applications based on application attributes that you define, including category, subcategory, technology, risk factor, and characteristic. This is useful when you want to safely enable access to applications that you do not explicitly sanction, but that you want users to be able to access. For example, you may want to enable employees to choose their own office programs (such as Evernote, Google Docs, or Microsoft Office 365) for business use. To safely enable these types of applications, you could create an application filter that matches on the Category business-systems and the Subcategory office-programs. As new applications office programs emerge and new App-IDs get created, these new applications will automatically match the filter you defined; you will not have to make any additional changes to your policy rulebase to safely enable any application that matches the attributes you defined for the filter.

https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-admin/firewall-administration/manage- firewall-administrators/configure-an-admin-role-profile

https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/user-id/map-ip-addresses-to-users