AWS VPC Flow Logs: 7 Things You HAVE To Know 💥

Описание: VPC Flow Logs is a feature in AWS that allows you to capture IP traffic information going to and from network interfaces in your virtual private cloud.

Hi Guys, this is Abi from GokceDB and in this video, you are going to learn 7 things about VPC Flow Logs in AWS. Let's get into it.

1. You can enable VPC Flow Logs from the AWS Management Console, AWS CLI, or by making simple API calls. Once enabled, relevant network traffic can be published to CloudWatch logs, Amazon S3, or Kinesis Data Firehose.

2. Flow logs can help you troubleshoot things like Diagnosing overly restrictive security group rules, Monitoring instance traffic, and determining the direction of the network traffic.

3. Since the data is collected outside of the path of network traffic it does not affect your network's latency. This means that you can create or delete flow logs without any risk of impact to the network performance.

4. You can create a flow log for a VPC, a subnet, or a network interface. If you create a flow log for a subnet or VPC, each network interface in that subnet or VPC is monitored.

5. Flog logs do not capture real-time log streams for your network interfaces. This is to say that after you create a flow log, it can take several minutes to begin collecting and publishing data to the chosen destination.

6. A flow log record indicates values for the different components of the IP flow such as the source, destination, and protocol. When you create a flow log, you can use the default format for the flow log record or specify a custom one.

7. The aggregation interval is the period of time during which a particular flow is captured and aggregated into a flow log record. By default, the maximum aggregation interval is 10 minutes.

In summary, VPC Flow logs in AWS allow you to monitor information about how your network resources are operating by capturing IP traffic in your VPC.

There you have it.

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