From the course: VPC Networking: Designing a Software Defined Data Center on AWS

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Create flow logs

Create flow logs

- [Instructor] For creating a flow log we have to decide which VPC we want to actually gather the network flow information from. So let's go into the VPC console and select Your VPCs. Selecting any of the VPCs that show up in the console, such as Dev VPC, you'll notice that the tab for Flow Logs. If I pick HPlusSports, again, Flow Logs for the entire VPC. So I can create a flow log that will gather information about all IP traffic flow for all the interfaces within my network. If I select Subnets, each subnet will have the same option where I could create a flow log for the particular subnet. It depends on the scope that you want to monitor. So let's go back up to your VPCs, and we'll pick HPlusSports. Now we'll pick Flow Logs and select Create flow log. Now we have to decide what we want to actually store. The filter allows us to Accept, Reject, or select All traffic to be stored in the flow log. We'll say we want all the traffic. Now we have some decisions. Do I want this…

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