Category: Advanced (300)

VPC Lattice now supports private domain-name targets, so you can point a resource configuration at a name that resolves only in a Route 53 private hosted zone or on an on-premises DNS server. This post explains how to choose a DNS resolution type and source, then walks through two deployment patterns for sharing a private service across accounts.

The AWS MCP Server, a managed remote server for the Model Context Protocol (MCP), runs in production behind Amazon CloudFront. Hundreds of thousands of AWS accounts call it, and it handles millions of tool calls every month. Every request enters one of CloudFront’s more than 750 Points of Presence (PoPs), the edge locations nearest the […]

Multicloud is no longer an edge case. Workloads end up spanning AWS and Google Cloud, Microsoft Azure, or Oracle Cloud Infrastructure after an acquisition, through a footprint that predates any consolidation decision, or because a key vendor operates on the other cloud. Sooner or later a network engineer gets the task: connect two environments privately […]

AWS WAF gives you a practical way to secure and observe Model Context Protocol (MCP) endpoints at the edge. MCP has quickly become the standard way AI agents communicate to tools and data. Originally, it was a stateful protocol built around long-running sessions, persistent connections, and client-to-server-instance binding. The 2026-07-28 MCP revision redesigned MCP as […]

Domain governance in Amazon Route 53 can mean the difference between a routine account decommissioning and an unplanned outage. Picture this situation: your organization closes an Amazon Web Services (AWS) account, and five days later a customer-facing website becomes unreachable, email stops flowing, and SSL certificate validation fails. A domain that this account had registered […]

When building extranet connections between external partners and your AWS infrastructure, an integration project can become a task that requires additional work hours, additional costs, and communication inconsistencies. This post describes a secure, scalable and resilient architecture pattern for a modern extranet architecture on AWS, that minimizes commonly issues faced by usual designs: overlapping address […]

Reviewing partner contracts by hand is slow and repetitive, so teams want an AI agent to do the first pass. In the example used throughout this post, a company called Example Corp reviews incoming partner agreements against its own standard operating procedures. A partner uploads an agreement, the agent checks it against those procedures, and […]

Learn how to build a serverless automation that monitors VPC IP utilization and expands CIDR capacity within minutes. This solution uses AWS Lambda, Step Functions, and IPAM to detect IP exhaustion risk and add secondary CIDRs with new subnets automatically. Three operating modes support environments with full IPAM management, IPAM for subnets only, or no IPAM at all. Deploy with a single SAM command and configure through VPC tags.

When an AWS Site-to-Site VPN connection degrades, you sift through hundreds of log entries, correlate Border Gateway Protocol (BGP) state transitions with Internet Key Exchange (IKE) phase changes and decide whether the cause is a prefix quota violation, an autonomous system (AS) path loop, or a hold timer expiry. That repetitive manual work prolongs recovery. […]

Network Load Balancer health checks confirm that a RADIUS server is reachable, not that it can authenticate a user, so a server with a failed identity store keeps receiving traffic. This post walks through an open-source reference solution that closes the gap with a single Amazon ECS witness that runs application-layer RADIUS probes and reconciles NLB target group membership directly.