title: Docker service hosts config failed to start
body: <p>I have Debian 10 virtual machine.
  And I want to be able to connect to the docker API from another host.
  I can connect to docker from other host if I start docker deamon from console </p>
  
  <pre><code>dockerd -H unix:///var/run/docker.sock -H tcp://192.168.3.157
  </code></pre>
  
  <p>If I try to configure <code>/etc/docker/daemon.json</code> like</p>
  
  <pre><code>{
    "hosts": ["unix:///var/run/docker.sock", "tcp://192.168.3.157"]
  }
  </code></pre>
  
  <p>The command <code>systemctl start docker</code> fails. The command <code>systemctl status docker</code> have next output</p>
  
  <pre><code>● docker.service - Docker Application Container Engine
     Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Sat 2019-11-02 11:32:26 MSK; 1min 10s ago
       Docs: https://docs.docker.com
    Process: 868 ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock (code=exited, status=1/FAILURE)
   Main PID: 868 (code=exited, status=1/FAILURE)
  
  Nov 02 11:32:24 debian-for-docker systemd[1]: Failed to start Docker Application Container Engine.
  Nov 02 11:32:26 debian-for-docker systemd[1]: docker.service: Service RestartSec=2s expired, scheduling restart.
  Nov 02 11:32:26 debian-for-docker systemd[1]: docker.service: Scheduled restart job, restart counter is at 3.
  Nov 02 11:32:26 debian-for-docker systemd[1]: Stopped Docker Application Container Engine.
  Nov 02 11:32:26 debian-for-docker systemd[1]: docker.service: Start request repeated too quickly.
  Nov 02 11:32:26 debian-for-docker systemd[1]: docker.service: Failed with result 'exit-code'.
  Nov 02 11:32:26 debian-for-docker systemd[1]: Failed to start Docker Application Container Engine.
  Nov 02 11:32:53 debian-for-docker systemd[1]: docker.service: Start request repeated too quickly.
  Nov 02 11:32:53 debian-for-docker systemd[1]: docker.service: Failed with result 'exit-code'.
  Nov 02 11:32:53 debian-for-docker systemd[1]: Failed to start Docker Application Container Engine.
  </code></pre>
  
  <p>How should I configure the <code>/etc/docker/daemon.json</code> to make my deamon start properly?</p>