AWS学习笔记(五)
默认，AWS用户的操作没有记录日志，可以使用AWS CloudTrail Console或AWS CLI启用CloudTrail来记录。AWS CloudTrail Console
登录到AWS Management Console，然后打开CloudTrail console，点击Get Stared Now按钮，填写表单即可。CloudTail将日志保存在S3中，建议使用新的S3 Buket。Advanced中还有log file prefix,log file validation,Amazon SNS notifications选项。CloudTrail存储多个事件在一个日志文件中，SNS notification每个文件发送一次通知，而不是每个事件。
启用后就可以从CloudTrail console查看日志，可增加、更新、删除、停用trail。
CloudTrail CLI
Create a trail
Create a single-region trail：
The specified S3 bucket must already exist and have the appropriate CloudTrail permissions applied.
$ aws cloudtrail create-trail --name my-trail --s3-bucket-name my-bucket
Create a trail that applies to all regions：
$ aws cloudtrail create-trail --name my-trail --s3-bucket-name my-bucket --is-multi-region-trail
Start logging
After the create-trail command completes, run the start-logging command to start logging for that trail.When you create a trail with the CloudTrail console or the create-subscription command, logging is turned on automatically.
$ aws cloudtrail start-logging --name my-trail
Stop logging
$ aws cloudtrail stop-logging --name my-trail
Update Trail
Converting a multi-region trail to a single-region trail：
$ aws cloudtrail update-trail --name my-trail --no-is-multi-region-trail
Enabling log file validation：
$ aws cloudtrail update-trail --name my-trail --enable-log-file-validation
Get trail status
$ aws cloudtrail get-trail-status --name my-trail
Retrieve trail settings
$ aws cloudtrail describe-trails
Delete a trail
$ aws cloudtrail delete-trail --name my-trail
删除trail不会删除S3和SNS topic
参考文档
Creating and Updating a Trail with the CloudTrail Console
Creating and Updating a Trail with the AWS Command Line Interface
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