The Internet Gateway ID is stored in the variable $AWS_INTERNET_GATEWAY for future reference. The above command will create an Internet Gateway, create a name tag for it and attach it to the VPC identified by the $AWS_VPC variable. This is a necessary step for our public subnet instances to have internet access. An Internet Gateway is a VPC component that allows communication between instances in our VPC and the internet. In this step, we will create an Internet Gateway and associate it with our VPC. The advantage of Elastic IP addresses is that they can be moved between instances or be released when no longer needed, avoiding the extra charges that come with using an automatically assigned public IP address. It's worth noting that, you can also assign public IP addresses to instances by using Elastic IP addresses, a feature that allows you to allocate an IP address to your AWS account and then associate it with an instance. This feature tells the AWS to automatically assign a public IP to the instances launched in this subnet. The above command will enable the Auto-assign Public IP feature for the public subnet identified by the $AWS_PUBLIC_SUBNETvariable. This VPC will be the foundation for our Bastion Host, providing a secure and isolated network environment.įirst, we need to create a VPC, run the following command:Įnter fullscreen mode Exit fullscreen mode In this section, we will create a Virtual Private Cloud (VPC) and its resources such as subnets, internet gateways, etc. This can be done by running aws configure in the command line and providing your access key and secret key. You will also need to have the AWS CLI configured with your access keys for the IAM user you created above. To create an IAM user, follow the instructions on Creating an IAM User An IAM user with the following permissions:.You can follow the instructions on Installing the AWS CLI to install and configure it. AWS CLI installed and configured on your local machine.By the end of this post, you will have a secure and easy way to remotely access your EC2 instances.īefore starting, make sure that you have the following: We will create a Virtual Private Cloud (VPC) and subnets, create an Internet Gateway and configure the Bastion host with the appropriate permissions to access our EC2 instances. In this post, we will show you how to set up a Bastion host on AWS using the AWS CLI. A Bastion host is a special-purpose computer on a network specifically designed and configured to withstand attacks. In today's world, security is the top priority for any infrastructure and applications, that's why a Bastion host is a must-have in your infrastructure if you want to secure your remote connections.
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