The Host Firewall feature is able to control communications among your endpoints and gain additional visibility toward network connections. This is composed of user created rules that are enforced hierarchically and created through Host Firewall rule groups, profiles and policies.
Assuming the Host Firewall requirements and prerequisites are met, the feature works by:
Some additional Host Firewall resources:
Cortex XDR How-To Video: Host Firewall - How-To video on the topic of Host Firewall. This video walks through the creation of a Host Firewall rule alongside a demo.
Host Firewall documentation - Covers pre-requisites and an in-depth overview of Host Firewall creation on Windows and Mac.
You need to define it for particular endpoints. This is relevant at Step 3 (Configuring an Extensions Policy) of the workflow I mentioned. Once the Host Firewall Rule Groups are created along with an associated profile, the rules will be applied once selected in the Extensions Policy Creation and the targeted endpoints are established.
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