Networking Fundamentals Still Matter in Cloud Security

Cloud security conversations often focus on identity and policy, but networking fundamentals still matter. Traffic has to resolve, route, traverse controls and reach services in predictable ways.

Core Concepts

• DNS resolution paths.
• Route tables and next hops.
• Ingress and egress control.
• Private connectivity and service endpoints.
• Segmentation boundaries.
• Logging and packet-level troubleshooting.

Practical Questions

Before approving a cloud network design, ask:

• How does name resolution work from each environment?
• Where does internet egress happen?
• Which routes are default, propagated or manually defined?
• What traffic is logged?
• Which controls enforce segmentation?

Takeaway

Secure cloud design is easier when the network is explainable. If engineers cannot describe the flow, they cannot reliably defend or troubleshoot it.