> For the complete documentation index, see [llms.txt](https://gitbook.nicacton.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gitbook.nicacton.com/cloud-computing/aws/monitoring/cloudwatch/vpc-flow-logs.md).

# VPC Flow Logs

* Allow you to collect information about the IP traffic going to and  from network interfaces in your VPC
* VPC Flow Log data is stored in a log group in CloudWatch
* Flow logs can be created on a specific VPC, SUbnet or Network Interface
* Flow logs created on a VPC or Subnet will include all network interfaces in that VPC or subnet.
* Each network interface will have its own unique log stream.
* You can set the log to capture data on accepted traffic, rejected traffic, or all traffic.

### Access Logs (Delivered to S3)

* ELB Logs
* CloudFront Logs
* S3 Access Logs


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