Create a non-root user

• (“Instance state” > “Start instance” to resume)
• Copy “Public IPv4 DNS” (will be $SERVER_ADDRESS below)
  • something like “ec2-3-123-456-789.compute-1.amazonaws.com”
• ssh -i ~/path/to/do4ds-lab-key.pem ubuntu@$SERVER_ADDRESS
• sudo adduser test-user
  • Give them a password
  • Defaults ok for everything else
• sudo usermod -aG sudo test-user (add to Group)