====== Connecting to Docker containers via SSH ======

To construct an Ubuntu-based Docker image ready for SSH access with basic password authentication, start by creating a Dockerfile. Add this content:

  apt update && apt install -y openssh-server
  sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config
  passwd root
  service ssh start