Linux on AWS: What You’ll Need to Pay For

Not everything on AWS is free. They didn’t become a profit-generating machine by giving it all away. If you exceed free-tier usage, you’ll be billed. This means you can expect to pay for things like:
E2C instances larger than t2.micro or t3.micro
Services not part of a free-trial or “always free” offering like Reduced Redundancy Storage (RRS)
Exceeding your usage caps (e.g. over 750 hours of EC2, Elastic Load Balancer [ELB], or Relational Database Service use in a month or over 5GB of S3 storage)

Fortunately, for those of you simply studying and experimenting, it should be easy to stay under the caps.

CloudWatch is the AWS monitoring tool for, well, everything. CloudWatch ingests logs, events, and metrics across your AWS infrastructure to ensure you have visibility into everything going on in your environment.

As anyone who has operated a SIEM knows, having a tool that can aggregate a ton of data and make it accessible to engineers is crucial. Because CloudWatch integrates with GuardDuty, and can provide a huge amount of surrounding information, it can also make it easier to troubleshoot security incidents.

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