AWS S3 VPC Flow Log Access

Observer Gigaflow uses the Amazon Web Services (AWS) Command Line Interface (CLI) tools to access AWS services.

You can install the latest version of the CLI tools for AWS system from https://aws.amazon.com/cli/.

Note: The CLI tools must be configured with the same user used to run Gigaflow for it to be able to access the configuration profile. For Linux, you can use the "su" command to choose the correct user and then run the AWS CLI commands. For Windows, you need to change the Gigaflow service (using the services manager) to run as a local user. Then log in as that user, install the CLI tools, and configure your AWS access.

After installation, perform the following steps:

1. On your AWS console, add a role to the AWS instance with the following permissions:

• S3 List/Read/Download

{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:Get*",
"s3:List*",
"s3-object-lambda:Get*",
"s3-object-lambda:List*"
],
"Resource": "*"
}
]
}

• EC2 List/Read/Describe

{
 "Version": "2012-10-17",
 "Statement": [
 {
 "Effect": "Allow",
 "Action": "ec2:Describe*",
 "Resource": "*"
 }
 ]
}

2. Generate an Access Key ID and password and add them to your AWS CLI configuration (see https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-quickstart.html).

3. To test your configuration, run the following commands from the CLI:

aws ec2 describe-instances


aws s3 ls s3://


aws ec2 describe-flow-logs

AWS Flow Log format (minimal recommendations)

Below you can find the minimal recommendations on the AWS Flow Log format for the customer flow logs.

 ${version} ${account-id} ${instance-id} ${interface-id} ${flow-direction} ${srcaddr} ${dstaddr} ${srcport} ${dstport} ${protocol} ${packets} ${bytes} ${start} ${end} ${action} ${log-status}