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Reachability analysis when testing infrastructure

Veröffentlicht : Apr 26, 2023
Apr 2023
Assess ? Worth exploring with the goal of understanding how it will affect your enterprise.

When deploying infrastructure as code, we've noticed that a lot of time can be spent diagnosing and repairing production issues that result from systems being unable to communicate with one another. Because the network topology between them can be complex, the entire route may not be traversable even if individual ports and endpoints have been configured correctly. Infrastructure testing practices usually include verifying the right ports are open or closed or that an endpoint can be accessed, but we've only recently begun doing reachability analysis when testing infrastructure. The analysis generally involves more than simple yes/no determinations. For example, a tool might traverse and report on multiple routes through transit gateways. This technique is supported by tools across all the major cloud providers. Azure has a service called Network Watcher that can be scripted in automated tests and GCP supports Connectivity Tests. Now, in AWS, you can test reachability across accounts in the same organization.

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