code: def secure(new_user=env.user):
      
      run("apt-get update -q")
      run("apt-get upgrade -y -q")
      run("adduser --gecos '' %s" % new_user)
      run("usermod -G sudo %s" % new_user)
      run("sed -i 's:RootLogin yes:RootLogin no:' /etc/ssh/sshd_config")
      run("service ssh restart")
      print(green("Security steps completed. Log in to the server as '%s' from "
                  "now on." % new_user, bold=True))
docs: Minimal security steps for brand new servers.
      Installs system updates, creates new user (with sudo privileges) for future
      usage, and disables root login via SSH.