2 verified briefings on System Design. Each story includes a plain-English summary, why it matters, and the concrete action engineering teams should take.
External load balancers direct public internet traffic to internal services using a public IP address. In contrast, internal load balancers manage traffic exclusively within a private network, routing requests between internal resources. Understanding this key difference is essential for building scalable and secure application architectures.
AI agents that perform actions like sending emails or making payments face a critical challenge: confirming their tasks are complete. Without a reliable confirmation or "receipt," a simple retry can cause duplicate transactions, creating significant operational risks for businesses using this technology. This highlights a key reliability gap.