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Hello and welcome to this section on Security in kubernetes.



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My name is Mumshad



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Mannambeth



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and we are going through the Certified Kubernetes Administrators Course. In this section of the course,



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we will start with understanding the kubernetes security primitives.



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How does someone gain access to the kubernetes cluster and how are their actions controlled etc at a high level.



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We then start with the various Authentication mechanisms available.



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We will look at the default settings in the cluster and we practice viewing configurations of an existing



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cluster.



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We discuss about TLS Certificates and how various components within the cluster are secured using TLS



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certificates.



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If you are a kubernetes administrator and you setup a cluster on your own, you are bound to face challenges



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related to certificates. Which is why we discuss these from ground up from the absolute basics.



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This is one of the sections that I spent a lot of time on. I wanted to simplify some of the core concepts



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around certificates which is why I have added a number of pre-requisite lectures for those who are new



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to this topic.



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We sent out a poll while working on this section to understand your knowledge about TLS certificates



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and most of you said, you were absolute beginners, which is why we thought it would be good to explain



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some of these well. Especially since there are so many certificates used within the cluster between various



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components and it can be quite confusing for a beginner.



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These lectures and the practice test associated with them should help bridge that gap.



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But you might have to be a bit patient with me on this.



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Our goal is to enable you to tackle any security related or certificate related issues by the end of



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this section.



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These prerequisite lectures may not be for everyone.



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So depending on your level of expertise with certificates.



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Feel free to skip some of these lectures as required.



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We then move on to authorization. Where we look at the various authorization mechanisms and we focus



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specifically on role based access controls.



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We then discussed how to secure images in your environment followed by security contacts and finally



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network policies.



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So a lot of lectures and practice tests coming up.



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Take it easy and I hope you enjoy.