Cloud Network Services
Cloud Network Exposure Checklist for AWS, Azure, and Google Cloud Teams
A practical cloud network exposure checklist for public IPs, security groups, NSGs, routes, load balancers, VPN paths, DNS, logs, and ownership.
Short answer
Cloud exposure review should map public entry points, security rules, route paths, identities, logs, and ownership before changing controls.
Key Takeaways
- Cloud exposure is usually a path problem, not only a public IP problem.
- Security groups, NSGs, route tables, load balancers, DNS, VPNs, and logs must be reviewed together.
- A good review produces a short exposure map, ownership list, and prioritized fix plan.
Begin With the Public Entry Points
List public IPs, internet-facing load balancers, CDN origins, VPN gateways, exposed APIs, NAT paths, and DNS records. The first goal is to know what can be reached before deciding whether it should be reachable.
Review Control Planes and Data Paths Separately
Cloud consoles, IAM roles, and admin paths are control-plane risks. Security groups, NSGs, firewall policies, route tables, peering, and VPNs are data-path risks. Mixing them in one spreadsheet makes ownership unclear.
- Control plane: identities, MFA, admin roles, service principals, API tokens, and audit logs.
- Data path: public IPs, route tables, NACLs, NSGs, firewall rules, load balancers, and private endpoints.
- Evidence: flow logs, DNS, asset tags, owner tags, change history, and current diagrams.
Look for Drift, Not Only Misconfiguration
Many cloud exposures happen after a deadline, migration, test environment, or temporary vendor access. Drift checks should flag stale public rules, broad source ranges, unused VPNs, orphaned IPs, and resources without owners.
Make the Result Actionable
The best cloud exposure report is simple: exposed path, business purpose, owner, current control, observed risk, recommended action, and validation command. That format helps engineers fix issues without a long advisory document.
Practical Checklist
Export public IPs, load balancers, DNS records, VPN gateways, and NAT paths.
Review security groups, NSGs, NACLs, firewall policies, and route tables.
Check whether admin ports are restricted to trusted sources.
Verify flow logs and audit logs are enabled where they matter.
Map every exposed path to an owner and business purpose.
Close, restrict, or document every broad rule and temporary exception.
Questions Teams Ask
Is a public IP always a security issue?
No. The issue is whether the public path is necessary, restricted, monitored, patched, and owned.
What is the fastest cloud exposure win?
Remove unused public rules, restrict admin ports, verify flow logs, and tag every public-facing resource with an owner.
Should cloud exposure review include DNS?
Yes. DNS often reveals forgotten apps, old environments, public services, and third-party handoffs.