In this article, we will introduce one of the most useful tools that every engineer responsible for the network layer should have in their arsenal: VPC flow logs. Back in the day when private data centers were cool, when we needed to troubleshoot network problems, we had to “tap the wire” and that could take many forms such as installing packet sniffers on various network segments or configuring complicated traffic mirroring options. Enter VPC flow logs! With the cloud and the advent of software defined networks, troubleshooting IP networks has never been easier.

Amazon GuardDuty is a threat detection service that uses machine learning and other techniques to identify malicious activity and unauthorized behavior in your AWS accounts and workloads. It integrates with other AWS security services to provide a comprehensive view of your security posture and helps Security, DevOps, Compliance and Incident response teams to quickly respond to security threats.

IAM plays a crucial role in securing access to resources in an AWS EKS cluster, therefor it’s important to have a strong understanding of IAM (Identity and Access Management) to effectively troubleshoot any issues that may arise.

When deploying workloads to EKS, it is important to ensure that appropriate access control is in place to protect resources and data. This is where IAM roles and policies come into play. IAM roles and policies in Amazon EKS are used to define and manage permissions for Kubernetes resources running in an EKS cluster. IAM roles are used to grant access to AWS resources and services, while Kubernetes policies are used to grant access to Kubernetes resources.

The Cluster Autoscaler in Kubernetes is a component that dynamically resizes the cluster according to the workload. In Amazon Elastic Kubernetes Service (EKS), the Cluster Autoscaler optimizes resource utilization and cost by scaling down nodes during periods of low demand and scaling up when demand increases.