Architecture: Private NAT and Overlapping IP Ranges in AWS

Two teams, two projects, two VPCs. Neither team talked to the other about addressing, so both grabbed the obvious default: 10.0.0.0/16 . Everything worked fine in isolation. Then a business requirement lands: an application in VPC A needs to call a service in VPC B . You reach for VPC peering, and AWS rejects it. You reach for a Transit Gateway, attach both VPCs, and watch one of your routes silently vanish from the route table. The problem is not … Read More

Explained: BYOIP (Bring Your Own IP)

You already own your IP addresses. Here's why that matters in the cloud. You run a company with servers in three places: your own data center, a colocated facility, and now AWS. Your servers have used the same block of public IP addresses for years. Clients, partners, firewall allowlists, and DNS records all point at those IPs. Then you launch an EC2 instance and AWS hands you a fresh IP from its own pool. Fine for most workloads. But what if … Read More

Explained: AWS Global Accelerator

The failover drill was supposed to take five minutes. At 2:00 a.m. the team failed the primary region on schedule, the Route 53 health check noticed within seconds, and the DNS answer flipped to the standby site exactly as designed. Twenty minutes later, the dashboards told a different story. Nearly half the clients were still connecting to the dead region. Nothing was misconfigured; every layer was doing exactly what it was built to do. The reco… Read More

Architecture: Amazon Bedrock AgentCore

On July 30, 2026, Amazon Bedrock Agents, the service AWS launched in 2023 for building tool-using AI agents, closes to new customers. AWS has renamed it Bedrock Agents Classic and pointed everyone at its successor. If your team demoed an agent prototype this quarter, someone is about to ask you what it should actually run on in production. The answer AWS wants you to reach is Amazon Bedrock AgentCore . That deadline is a good excuse to understand … Read More