Interacting with your first EC2 instance

To deploy an application on an EC2 instance, we first have to login into it and install the necessary packages/software, which can be easily done through an SSH client, such as MobaXterm, Putty, and so on. In this recipe, we will login into an EC2 instance, which we created in the previous recipe, and install Go using the Red Hat package manager.

How to do it…

1. Set the permissions of the private key file—my-first-ec2-instance.pem—to 400, which means the user/owner can read, can't write, and can't execute, whereas the group and others can't read, can't write, and can't execute it, by executing the chmod command, as follows:

$ chmod 400 my-first-ec2-instance.pem

2. Get the public DNS of the EC2 instance and connect to it using a private key file as an ec2-user by executing the ssh command, as follows:

$ssh -i my-first-ec2-instance.pem [e-mail]

Once the command has executed successfully, we will be logged in to the EC2...