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→Static IPs
Interestingly Elastic IPs are free when you use them, but cost money if you don't use them. That's because there's a limited pool of public IPv4 addresses, and once you request one of these addresses: noone else can use it. So you better use it, or pay for keeping it from other users. Since our VMs are going to be shut down most of the time: this is one of the costs that will come out of your 100$ credit.
= Your Setup =
You need lots of practice to get used to these concepts. It's not enough to just read about them.
* In the AWS Management Console you've looked at EC2 so far. Now open the VPC Management Console. As most things in AWS: this interface is overwhelming at first. Once you go through it several times you'll get more comfortable with it.
* Click "Your VPCs". Note that there is a default one there which was created automatically with your account. Click "Create VPC".
** Set the name to vpc-ops345
** Set the CIDR block to 10.3.45.0/24 (larger than the subnet you will create later)
** No IPv6
* VPC dashboard:
