# AWS Lambda

Scanner supports AWS Lambda logs, which are logs generated by the code running in Lambda functions. These tend to be application logs.

In order for Scanner to see your Lambda logs, you can configure Lambda to publish logs to CloudWatch, then configure the CloudWatch log groups to forward data to a Kinesis Data Firehose, which can then write the logs into an S3 bucket that Scanner is linked to.

## Step 1: Configure Lambda to publish logs to CloudWatch

You can follow AWS documentation to publish your Lambda logs to one or more CloudWatch log groups. See: [Using CloudWatch Logs logs with Lambda](https://docs.aws.amazon.com/lambda/latest/dg/monitoring-cloudwatchlogs.html).

## Step 2: Set up CloudWatch to push to Kinesis Data Firehose

You can follow the AWS documentation to configure your CloudWatch log groups to push their logs to a Kinesis Data Firehose. See: [Send CloudWatch Logs to Firehose](https://docs.aws.amazon.com/firehose/latest/dev/writing-with-cloudwatch-logs.html).

## Step 3: Configure the Kinesis Data Firehose to write logs to S3

A Kinesis Data Firehose can push logs to various destinations. We want to push to an S3 bucket that Scanner is linked to. You can follow the AWS documentation to configure the Firehose to write to an S3 bucket. See: [Understand data delivery in Amazon Data Firehose](https://docs.aws.amazon.com/firehose/latest/dev/basic-deliver.html).

## Step 4: Ingest via Scanner Collect

Follow the [Custom Logs - AWS S3](/scanner/using-scanner-complete-feature-reference/data-ingestion/sources/custom-logs-aws-s3.md) guide to ingest logs from S3 via Scanner Collect.


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