Tips to Reduce Network Noise via AWS Subnet NACL
ACM.309 Have you looked at all the traffic reflecting off your public facing systems?
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In the last post I explained how to troubleshoot problems with Lambda networking on AWS, or any networking really. It’s just that with Lambda you need to know where to find the ENIs and IP addresses associated with a Lambda function.
While going through those steps it became apparent that there’s a lot of unwanted traffic reflecting off our NAT, or worse. This pointless noise is slowing down systems and making it hard to pinpoint malicious activity on networks (traffic that passes but is unwanted).
What you will notice about all the traffic above is that it is for most use cases, anomalous. It sends and receives traffic on two high…
