AWS (Amazon Web Services) provides various tools and services for monitoring your cloud infrastructure, applications, and resources. Monitoring is crucial to ensure the performance, availability, and security of your AWS environment. Here are some key AWS monitoring services and concepts:

1. Amazon CloudWatch: This is a central monitoring service provided by AWS. It collects and tracks metrics, collects log files, and sets alarms. CloudWatch can monitor various AWS resources, such as EC2 instances, RDS databases, Lambda functions, and more. You can use CloudWatch to gain insights into your system’s performance and troubleshoot issues.

2. CloudWatch Metrics: AWS services automatically send various performance-related data to CloudWatch in the form of metrics. These metrics represent different aspects of your resources’ behavior, such as CPU utilization, network traffic, and storage metrics. You can visualize and analyze these metrics using CloudWatch dashboards and create alarms based on threshold conditions.

3. CloudWatch Alarms: You can create CloudWatch alarms based on specific metrics to trigger actions when certain conditions are met or breached. For example, you can set up an alarm to notify you when the CPU utilization of an EC2 instance exceeds a certain threshold.

4. Amazon CloudWatch Logs: This feature allows you to monitor, store, and access log files from various AWS resources. You can collect application logs, system logs, and other custom log data. CloudWatch Logs enable you to analyze and respond to issues or trends within your applications and systems.

5. AWS Trusted Advisor: This service provides real-time guidance to help optimize your AWS infrastructure, security, and cost. It offers recommendations for improvements based on AWS best practices and helps you identify potential issues in your environment.

6. AWS X-Ray: This is a service that helps you understand and analyze the behavior of your applications. It provides insights into the performance of individual components and helps identify bottlenecks and latency issues in distributed applications.

7. AWS Config: This service allows you to assess, audit, and evaluate the configuration of your AWS resources over time. It helps you track changes and compliance with your desired configurations.

8. AWS CloudTrail: CloudTrail provides detailed event history of your AWS account activities, such as resource changes, API calls, and other account-related events. It enables security analysis, resource tracking, and troubleshooting.

9. AWS Health: This service provides information about the health status of AWS services in various regions. It alerts you about any potential issues or outages that could affect your resources.