This article is the first in a series detailing how to leverage firewall data within Elastic Security to enhance network visibility. It explains the critical role of firewalls as gatekeepers for both north-south and east-west traffic, providing the necessary logs to monitor connection patterns and enforce security policies across physical and cloud environments.
The guide outlines the specific metadata fields found in firewall logs—such as source/destination IPs, ports, and NAT info—and provides a walkthrough for collecting this data using the Elastic Agent. It concludes by introducing the Elastic Security Network Page, which offers interactive maps and data tables to help analysts visualize network activity and identify potential threats.
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