Connect Instance

Depending on your operating system and whether you chose to launch a Linux or Windows instance, follow one of the tutorials below.

Linux instance

Mac

1. Click on your running EC2-instance in the console and copy the Public IPv4 DNS address (e.g., ec2-XX-XXX-XXX-XXX.compute-1.amazonaws.com).

2. Open the terminal and type export HOST=<YOUR-PUBLIC-IPV4-DNS> (see step 1) and export KEY=<PATH_TO_KEY_PAIR_FILE> (e.g., /Users/Roy/Downloads/ec2-key-pair.pem). This creates two variables, HOST and KEY, that we can reference in our terminal (e.g., if you type $KEY it returns the aforementioned file path).

3. Type chmod 700 $KEY to change the permissions of the private key file.

4. Type SSH -i $KEY ec2-user@$HOST to connect with the EC2-instance.

5. Type yes if it asks you to continue connecting and hit Enter. If done successfully, it prints the text “EC2” to the terminal followed by the AMI that you selected (e.g., Amazon Linux 2 AMI). So, in short, we connected to an EC2-instance that we can control through our terminal, however, there are no scripts or data on it yet so we first need to copy files to our instance before we can put it to work.

Windows

1. Download PuTTY MSI Windows Installer and follow the installation wizard. If it doesn’t come with the PuTTY Key Generator pre-installed, also make sure to download puttygen.exe from the same page.

2. Open PuTTy Key Generator, click on “Load”, and select the private key file you downloaded earlier.

3. Click on “Save private key” to convert the *.pem file into a *.ppk file.

4. Click on your running EC2-instance in the console and copy the Public IPv4 DNS address (e.g., ec2-XX-XXX-XXX-XXX.compute-1.amazonaws.com).

5. Open PuTTY (so not the Key Generator!) and enter the following as the host name: ec2-user@<YOUR-PUBLIC-IPV4-DNS>

6. In the left panel, click on Connection > SSH > Auth and click on “Browse” to add your *.ppk private key.

Windows instance

1. Install Windows Remote Desktop (Windows & Mac.

2. Head over to your Windows Instance in the AWS console and click on “Connect” and then “RDP Client”.

3. Click on the “Download remote desktop file” button to download a rdp file.

4. Before you open the file, click on “Get password”, upload the keypair (*.pem file), click on “Decrypt password” and copy the password.

5. Now, open the rdp file and login with the credentials (Username = “Administrator”, Password = <see step 4>).

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