Stop Reusing the Same CIDR Everywhere: VPC Peering Will Bite You
Overlapping CIDRs block VPC peering and make growth painful. Here’s a practical plan for org-wide CIDR design, Terraform guardrails, and zero-downtime migration.
Overlapping CIDRs block VPC peering and make growth painful. Here’s a practical plan for org-wide CIDR design, Terraform guardrails, and zero-downtime migration.
Databases should live in private subnets for security — but how do you access them when they’re not exposed to the internet? In this post, I cover bastion hosts, Session Manager, VPC peering, VPN/Direct Connect, and PrivateLink.