Kubernetes Network Policies - Hands on Tutorial

Hey everyone,

While prepping for my CKS exam recently, I came across a really solid YouTube playlist on Kubernetes Network Policies that I thought was worth passing along to the community.

Network Policies were definitely one of the areas I struggled to get comfortable with, especially when combining podSelector and namespaceSelector logic or configuring default-deny rules under exam time limits. Since CKS usually hits this topic pretty heavily (usually at least two performance-based questions), finding clear, lab-based practice was a huge help for me.

The playlist breaks down the concepts step-by-step and includes hands-on lab exercises that simulate real scenario setups rather than just reading through the official docs.

What it covers well:

  • Ingress & Egress Evaluation: How traffic rules get evaluated in practice.
  • Default Policies: Setting up zero-trust (default-deny-all) configurations.
  • Namespace & Pod Isolation: Real-world scenarios for restricting traffic between environments.
  • Practical Labs: Hands-on setups that are especially helpful if you’re taking CKA, CKAD, or CKS.

If anyone else is working through network security concepts or prepping for their Linux Foundation exams, it’s definitely worth checking out:

:point_right: [Kubernetes Network Policies]https://www.youtube.com/watch?v=fh4Ts9XH4rE&list=PLZaKHo5mMnNI&index=1

Hope it helps out anyone else working through CKS prep!

thanks