How to Verify Communication Between Public and Private EC2 Instances Using VPC, Routes & Security Groups
https://knowledge.businesscompassllc.com/how-to-verify-communication-between-public-and-private-ec2-instances-using-vpc-routes-security-groups/
Setting up secure communication between public and private EC2 instances can feel like solving a networking puzzle. This podcast walks you through configuring AWS VPC EC2 communication from scratch, showing you exactly how to verify EC2 instance connectivity using proper route tables and security groups.