How do I send VPC flow logs to Splunk?

To send data and application events to Splunk clusters, perform the following:

  1. Create a Kinesis Data Firehose delivery stream.
  2. Configure AWS Lambda for record transformation.
  3. Configure VPC Flow Logs.
  4. Create an Amazon CloudWatch Logs subscription to your stream.

How do I monitor VPC flow logs?

To view information about flow logs for your VPCs or subnets Open the Amazon VPC console at https://console.aws.amazon.com/vpc/ . In the navigation pane, choose Your VPCs or Subnets. Select your VPC or subnet, and choose Flow Logs. Information about the flow logs is displayed on the tab.

How do I forward AWS Splunk logs?

Step-by-step walkthrough to stream AWS CloudWatch Logs

  1. Step 1: Enable CloudWatch Logs stream.
  2. Step 2: Configure Splunk HEC input.
  3. Step 3: Configure Lambda function.

Where are VPC flow logs stored?

CloudWatch Logs
New Flow Logs will appear in the Flow Logs tab of the VPC dashboard. The Flow Logs are saved into log groups in CloudWatch Logs. The log group will be created approximately 15 minutes after you create a new Flow Log. You can access them via the CloudWatch Logs dashboard.

How do I transfer data from AWS to Splunk?

Topics

  1. Step 1: Send Log Data from Amazon VPC to Amazon CloudWatch.
  2. Step 2: Create a Kinesis Data Firehose Delivery Stream with Splunk as a Destination.
  3. Step 3: Send the Data from Amazon CloudWatch to Kinesis Data Firehose.
  4. Step 4: Check the Results in Splunk and in Kinesis Data Firehose.

How does Splunk integrate with AWS?

  1. Step 1: Set up your Splunk Cloud Platform environment.
  2. Step 2: Configure an access policy for Splunk Access in AWS.
  3. Step 3: Create a Splunk Access user.
  4. Step 4: Create a group for Splunk Access users.
  5. Step 5: Enable the AWS CloudTrail Service.
  6. Step 6: Create an SQS subscription.

Are VPC flow logs useful?

Flow logs can help you with a number of tasks, such as: Diagnosing overly restrictive security group rules. Monitoring the traffic that is reaching your instance. Determining the direction of the traffic to and from the network interfaces.

How do I export VPC flow logs?

Open the Amazon VPC console at https://console.aws.amazon.com/vpc/ .

  1. In the navigation pane, choose Your VPCs.
  2. Select the checkboxes for one or more VPCs.
  3. Choose Actions, Create flow log.
  4. Configure the flow log settings. For more information, see To configure flow log settings.

Why do we need VPC flow logs?

VPC Flow Logs is a feature that enables you to capture information about the IP traffic going to and from network interfaces in your VPC. Flow log data can be published to Amazon CloudWatch Logs or Amazon S3. After you create a flow log, you can retrieve and view its data in the chosen destination.

How do I know if Splunk forwarder is working?

You can do the command “splunk list forward-server” to see if the forward-server is active on the forwarder. If it’s inactive, it usually means you have not enabled the receiver to receive forwarded data.

What is a Splunk heavy forwarder?

heavy forwarder noun. A type of forwarder, which is a Splunk Enterprise instance that sends data to another Splunk Enterprise instance or to a third-party system. A heavy forwarder has a smaller footprint than a Splunk Enterprise indexer but retains most of the capabilities of an indexer.

What is the difference between CloudWatch and Cloudtrail?

Amazon Cloudwatch is a monitoring service that gives you visibility into the performance and health of your AWS resources and applications, whereas AWS Cloudtrail is a service that logs AWS account activity and API usage for risk auditing, compliance and monitoring.

What is a flow log record in VPC?

A flow log record represents a network flow in your VPC. By default, each record captures a network internet protocol (IP) traffic flow that occurs within a capture window. The capture window is a period of up to 10 minutes during which all flows of data are captured.

How do I send data to Splunk clusters using HTTP events?

Instead of using heavy forwarders, you can use Splunk’s HTTP Event Collector (HEC) and Amazon Kinesis Data Firehose to send data to Splunk clusters. To send data and application events to Splunk clusters, perform the following:

How to create a backup for a Splunk endpoint?

For Splunk endpoint type, choose Raw endpoint, and then enter the authentication token. 4. Choose Next. 5. (Optional) Create an Amazon Simple Storage Service (Amazon S3) backup for failed events or all events by choosing an existing bucket or creating a new bucket.

How can I integrate my AWS data with Splunk?

I’m pushing data from AWS sources to Splunk clusters for processing, but it takes multiple steps. How can I better integrate my AWS data with Splunk? Instead of using heavy forwarders, you can use Splunk’s HTTP Event Collector (HEC) and Amazon Kinesis Data Firehose to send data to Splunk clusters.