![]() You cannot enable flow logs for VPCs that are peered with your VPC unless the peer VPC is in your account.No need to disable Source/Destination Checks.Automatically assigned a public ip address.You can create high availability using Autoscaling Groups, multiple subnets in different AZs, and a script to automate failover.If you are bottlenecking, increase the instance size The amount of traffic that NAT instances can support depends on the instance size.There must be a route out of the private subnet to the NAT instance, in order for this to work.NAT instances must be in a public subnet.When creating a NAT instance, disable source/destination check on the instance.Security Groups are Stateful Network Access Control Lists are Stateless.Consists of IGWs (or Virtual Privae Gateways), Route Tables, Network Access Control Lists, Subnets and Security Groups.Think of a VPC as a logical datacenter in AWS.Direct connection to VPC for Branch offices.Can be partitioned into multiple Virtual Interfaces.Predictable performance/consistent network experience. ![]() Connection between same or different AWS account.Peering is a star configuration: ie: 1 central VPC peers with 4 others.You can peer VPCs's with other AWS accounts as well as with other VPCs in the same account.Instances behave as if they were on the same private network.Allows you to connect one VPC with another via a direct netowork route using private Ip address.After you've created a flow log, you can view and retrieve its data in Amazon CloudWatch Logs. Flow log data is stored using Amazon CloudWatch 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.Software is optimized for handling NAT traffic Highly available, are implement with redundancy in each AZsĪ generic AMI that's configured to perform NAT Use script to manage fail over between instances NAT Instances vs NAT Gateways NAT Instances Each EC2 instance has both a public and private IP address.All subnets in default VPC have route out to the internet.Default VPS is user friendly, allowing you to inmmediately deploy instances.Subnet network access control lists (ACLS).Much better security control over your AWS resources.Create internet gateway and attach it to our VPC.Assign custom IP address ranges in each subnet.Launch instances into a subnet of your choosing.Additionally, you can create a Hardware Virtual Private Network (VPN) connection betwwen your corporate datacenter and your VPC and leverage the AWS cloud as an extension of your corporate datacenter.You can leverage multiple layers of security, including security groups and network access control lists, to help control access to Amazon EC2 instances in each subnet. ![]() For example, you can create a public-facing subnet for your webservers that has access to the Internet, and place your backend systems such as databases or application servers in a private-facing subnet with no Internet access.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |