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  • Subnet

     Japo_Japo updated 1 month, 1 week ago 1 Member · 1 Post
  • Japo_Japo

    September 7, 2021 at 7:41 pm

    AWS defines a subnet as a range of IP addresses in your VPC. You can launch AWS resources into a selected subnet. A public subnet can be used for resources connected to the internet and a private subnet for resources not connected to the internet.

    The netmask for a default subnet in your VPC is always 20, which provides up to 4,096 addresses per subnet, with few of them reserved for AWS use. The VPC can span multiple availability zones, but the subnet is always mapped to a single availability zone.

    The following is a basic diagram of a subnet:

    There is a virtual private cloud consisting of availability zones. A subnet is created inside each availability zone, and you cannot launch any instances unless there are subnets in your VPC.

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