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Infrastructure Monitoring with Amazon CloudWatch

You're reading from   Infrastructure Monitoring with Amazon CloudWatch Effectively optimize resource allocation, detect anomalies, and set automated actions on AWS

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Product type Paperback
Published in Apr 2021
Publisher Packt
ISBN-13 9781800566057
Length 314 pages
Edition 1st Edition
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Author (1):
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Ewere Diagboya Ewere Diagboya
Author Profile Icon Ewere Diagboya
Ewere Diagboya
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Table of Contents (16) Chapters Close

Preface 1. Section 1: Introduction to Monitoring and Amazon CloudWatch
2. Chapter 1: Introduction to Monitoring FREE CHAPTER 3. Chapter 2: CloudWatch Events and Alarms 4. Chapter 3: CloudWatch Logs, Metrics, and Dashboards 5. Section 2: AWS Services and Amazon CloudWatch
6. Chapter 4: Monitoring AWS Compute Services 7. Chapter 5: Setting Up Container Insights on Amazon CloudWatch 8. Chapter 6: Performance Insights for Database Services 9. Chapter 7: Monitoring Serverless Applications 10. Chapter 8: Using CloudWatch for Maintaining Highly Available Big Data Services 11. Chapter 9: Monitoring Storage Services with Amazon CloudWatch 12. Chapter 10: Monitoring Network Services 13. Chapter 11: Best Practices and Conclusion 14. Assessments 15. Other Books You May Enjoy

Monitoring Amazon VPC flow logs

The previous section explained the importance of Amazon VPC as it is the underlying infrastructure that other AWS services need to run efficiently – services such as EC2, RDS, EKS, ECS, Lambda, Elastic MapReduce (EMR), Elastic Beanstalk, Batch, Elasticsearch Service, Amazon Redshift, and ElastiCache. Due to this fact, it will also be important to know how to monitor what is going in the network infrastructure that these services run on.

VPC has a feature that allows this to be possible, called flow logs. A flow log is a combination of all the traffic data going through the VPC, which is a combination of all the subnets within the VPC, be it a private or public subnet. Flow logs make it possible to know the size of the data being sent or received, whether a network request was accepted or rejected, the source and destination port of a request, the source and destination IP address of a request, the network interface ID, the subnet ID, and much...

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