Creating a trail for your AWS account
When you create a trail, you enable ongoing delivery of events as log files to an Amazon S3 bucket that you specify. Creating a trail has many benefits, including:
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A record of events that extends past 90 days.
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The option to automatically monitor and alarm on specified events by sending log events to Amazon CloudWatch Logs.
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The option to query logs and analyze AWS service activity with Amazon Athena.
Beginning on April 12, 2019, you can view trails only in the AWS Regions where they log events. If you create a multi-Region trail, it appears in the console in all AWS Regions that are enabled in your account. If you create a trail that only logs events in a single Region, you can view and manage it only in that Region. As a best practice, we recommend creating a multi-Region trail because it captures activity in all enabled Regions. All trails created using the CloudTrail console are multi-Region trails. To create a single-Region trail, you must use the AWS CLI.
If you use AWS Organizations, you can create a trail that will log events for all AWS accounts in the organization. A trail with the same name will be created in each member account, and events from each trail will be delivered to the Amazon S3 bucket that you specify.
Note
Only the management account or delegated administrator account for an organization can create a trail for the organization. Creating a trail for an organization automatically enables integration between CloudTrail and Organizations. For more information, see Creating a trail for an organization.
If you misconfigure your trail (for example, the S3 bucket is unreachable), CloudTrail will attempt to redeliver the log files to your S3 bucket for 30 days, and these attempted-to-deliver events will be subject to standard CloudTrail charges. To avoid charges on a misconfigured trail, you need to delete the trail.
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