DNS and NTP on AWS

ACM.74 How these crucial services work by default and what happens if you want to use your own DNS and NTP servers on AWS

Teri Radichel
Cloud Security
Published in
6 min readOct 8, 2022

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In the last post I wrote about network design for serverless applications.

Now let’s consider some of the other core technologies we’ll need to consider and configure in an AWS network.

It’s always DNS…

Everything in AWS needs to access DNS or it will break. And I mean EVERYTHING. When we connect to parameter store from our Lambda function, it needs to do a DNS lookup for the domain associated with SSM parameter…

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Teri Radichel
Cloud Security

CEO 2nd Sight Lab | Penetration Testing & Assessments | AWS Hero | Masters of Infosec & Software Engineering | GSE 240 etc | IANS | SANS Difference Makers Award