title: How do I install and configure Docker on Ubuntu-like systems (Kubuntu)
body: <p>i tried using ddev with Linux Kubuntu and did as proceeded as described here:</p>
  <p><a href="https://t3terminal.com/typo3-tutorials/install-typo3-docker-ddev/" rel="nofollow noreferrer">https://t3terminal.com/typo3-tutorials/install-typo3-docker-ddev/</a></p>
  <p>means:</p>
  <pre><code>// Install DDEV
  curl -L https://raw.githubusercontent.com/drud/ddev/master/scripts/install_ddev.sh | bash
  
  // Install mkcert
  sudo apt install libnss3-tools
  mkcert -install
  
  // Check DDEV works well?
  ddev
  </code></pre>
  <pre><code>$ ddev config
  … Project name (temp-test): test
  … Docroot Location (current directory): 
  Found a php codebase at ~/github/temp-test. 
  … Project Type [backdrop, drupal6, drupal7, drupal8, drupal9, laravel, magento, magento2, php, shopware6, typo3, wordpress] (php): laravel
  … You may now run 'ddev start'. 
  
  ~/github/temp-test$ ddev start
  Could not connect to docker. Please ensure Docker is installed and running.
  </code></pre>
  <p>So i found this tip's here: <a href="https://stackoverflow.com/a/55022110/2891692">Docker can't connect to docker daemon</a> :</p>
  <pre><code>~/github/temp-test$ sudo service docker stop &amp;&amp; sudo service docker start
  Warning: Stopping docker.service, but it can still be activated by:
    docker.socket
  ~/github/temp-test$ ddev start
  Could not connect to docker. Please ensure Docker is installed and running.
  ~/github/temp-test$ sudo service docker start
  ~/github/temp-test$ ddev start
  Could not connect to docker. Please ensure Docker is installed and running.
  ~/github/temp-test$ sudo service docker restart
  ~/github/temp-test$ 
  
  </code></pre>
  <p>it looks as if docker is installed (because it talks to me <code>Warning: Stopping docker.service</code>) but ddev does not find docker. what else can try?</p>
  <h1>Docker version</h1>
  <pre><code>~ docker --version
  Docker version 20.10.8, build 3967b7d
  </code></pre>
  <h1>Operating System</h1>
  <p>Kubuntu 20.04
  KDE Plasma Version: 5.18.5
  KDE Frameworks Version: 5.68.0
  Qt Version: 5.12.8</p>