13 Security Alerts and Visualizations for VPC Flow Logs

The article provides an overview of AWS VPC Flow Logs, detailing their functionality in monitoring and recording network traffic within applications, including information on IP addresses, ports, packets, and bytes. It emphasizes the importance of these logs in enhancing security posture by allowing for optimization of access control list (ACL) rules and setting alarms for suspicious activities. The article offers various examples of how parsed flow logs can be used to create alerts for illegal traffic, excessive rejections, short connections, potential security breaches, unauthorized destination ports, and log-status issues, while also suggesting the use of tools like Coralogix for enhanced log management. Furthermore, it highlights the use of visualizations, such as those provided by Kibana, to analyze operational parameters within AWS VPCs, ultimately encouraging readers to adapt these insights to their specific logging needs and configurations.

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