Skip to main content

Aswin Vijayan

— 21 posts published
October 2026

How to Prevent Concurrent Terraform Applies with State Lock

October 2026

What Happens When You Run kubectl apply ?

October 2026

Fixing 502/503 Errors During Kubernetes Deployments

October 2026

Docker Images Should Be Built Once and Promoted

October 2026

Designing Public and Private Subnets in an AWS VPC

October 2026

Pod DNS Configuration and Troubleshooting

— Module 6: Kubernetes DNS and CoreDNS
October 2026

Understanding the CoreDNS Corefile

— Module 6: Kubernetes DNS and CoreDNS
October 2026

Kubernetes Service Types

— Module 5: Kubernetes Services
October 2026

Troubleshooting Kubernetes Service Traffic

— Module 4: kube-proxy
October 2026

Troubleshooting CNI

— Module 3: CNI Networking
September 2026

Kubernetes Client-side Vs Server-side Apply

September 2026

IP Masquerade

— Module: Network Address Translation (NAT)
September 2026

DNAT (Destination NAT)

— Module: Network Address Translation (NAT)
September 2026

Overlay vs. Underlay

— Module 2: Container and Pod Communication
September 2026

How a Pod Gets Its IP Address

— Module 2: Container and Pod Communication
September 2026

The Kubernetes Network Model

— Module 1: Kubernetes Networking Basics
September 2026

East-West vs. North-South Traffic

— Module 1: Kubernetes Networking Basics
September 2026

Accessing Private EC2 Instances Without SSH

September 2026

SNAT (Source NAT)

— Module: Network Address Translation (NAT)
September 2026

What is NAT?

— Module: Network Address Translation (NAT)