Day 30: How HTTPS & SSH Work | What is Encryption? | Symmetric & Asymmetric Encryption | CKA 2025
? GitHub Repository: https://github.com/CloudWithVarJosh/CKA-Certification-Course-2025
? CKA 2025 Playlist: https://youtube.com/playlist?list=PLmPit9IIdzwRjqD-l_sZBDdPlcSfKqpAt&si=1JNRkoNa75AOJx0o
? Welcome to Day 30!
In this lecture, we take a break from Kubernetes to understand a core concept used everywhere—from cluster communication to secure user access: Encryption. We’ll demystify how it works, why it matters, and how it's applied in real-world systems like HTTPS and SSH.
? What We’ll Cover:
✅ What is Encryption and why it matters
✅ Encryption at Rest vs In-Transit
✅ Symmetric vs Asymmetric encryption
✅ How SSH uses public-key cryptography
✅ How TLS combines both encryption types
✅ Why HTTPS guarantees confidentiality & authenticity
? By the end of this lecture:
You’ll have a clear understanding of how encryption secures communication — whether it’s accessing a VM via SSH or your browser using HTTPS, laying the foundation for secure interactions within and outside of your Kubernetes cluster.
? Stay Connected:
? LinkedIn: https://linkedin.com/in/varun-joshi-2b516752
? GitHub: https://github.com/CloudWithVarJosh
? Got questions? Drop them in the comments—I’ll reply ASAP!
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⏰ Timestamps:
00:00:00 - Introduction
00:00:31 - What & Why of Encryption: Symmetric vs Asymmetric Encryption
00:08:54 - Encryption Approaches: In-Transit vs At-Rest
00:13:29 - Scenario 1: Disk Encryption (Symmetric)
00:15:09 - Scenario 2: Symmetric Encryption Explained
00:16:28 - Scenario 3: SSH with Asymmetric Encryption
00:24:51 - Scenario 4: TLS using Asymmetric + Symmetric
00:37:42 - Outro & Key Takeaways
? Hashtags:
#Kubernetes #CKA #CloudWithVarJosh #CKACourse #Encryption #HTTPS #SSH #TLS #PublicKey #PrivateKey #DataSecurity #DevOps #CKAExam #KubernetesTutorial #CKAPreparation #CloudComputing #KubernetesCertification #Docker #CyberSecurity #SSL #AsymmetricEncryption #SymmetricEncryption