Analyzing AWS Flow Logs using ClickHouse

AWS VPC Flow Logs allow you to capture detailed information about the IP traffic going to and from network interfaces in your VPC. It contains the source and destination IPs, source and destination ports, start and end time, the protocol used, bytes sent and a few other metrics. This data can be useful for debugging security group issues, monitoring ingress and egress traffic as well as checking cross availability zone traffic which helps reduce your cloud bill. ClickHouse is an open-source column-oriented DBMS for online analytical processing that allows users to generate analytical reports using SQL queries in real-time.

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