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2nd chunk of `content/manuals/engine/daemon/logs.md`
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2021-07-28T10:21:21Z dockerd time="2021-07-28T10:21:21.497714291Z" level=debug msg="attach: stderr: begin"
2021-07-28T10:21:21Z dockerd time="2021-07-28T10:21:21.499798390Z" level=debug msg="Calling POST /v1.41/containers/35fc5ec0ffe1ad492d0a4fbf51fd6286a087b89d4dd66367fa3b7aec70b46a40/wait?condition=removed"
2021-07-28T10:21:21Z dockerd time="2021-07-28T10:21:21.518403686Z" level=debug msg="Calling GET /v1.41/containers/35fc5ec0ffe1ad492d0a4fbf51fd6286a087b89d4dd66367fa3b7aec70b46a40/json"
2021-07-28T10:21:21Z dockerd time="2021-07-28T10:21:21.527074928Z" level=debug msg="Calling POST /v1.41/containers/35fc5ec0ffe1ad492d0a4fbf51fd6286a087b89d4dd66367fa3b7aec70b46a40/start"
2021-07-28T10:21:21Z dockerd time="2021-07-28T10:21:21.528203579Z" level=debug msg="container mounted via layerStore: &{/var/lib/docker/overlay2/6e76ffecede030507fcaa576404e141e5f87fc4d7e1760e9ce5b52acb24
...
^C
```

## Enable debugging

There are two ways to enable debugging. The recommended approach is to set the
`debug` key to `true` in the `daemon.json` file. This method works for every
Docker platform.

1.  Edit the `daemon.json` file, which is usually located in `/etc/docker/`. You
    may need to create this file, if it doesn't yet exist. On macOS or Windows,
    don't edit the file directly. Instead, edit the file through the Docker Desktop settings.

2.  If the file is empty, add the following:

    ```json
    {
      "debug": true
    }
    ```

    If the file already contains JSON, just add the key `"debug": true`, being
    careful to add a comma to the end of the line if it's not the last line
    before the closing bracket. Also verify that if the `log-level` key is set,
    it's set to either `info` or `debug`. `info` is the default, and possible
    values are `debug`, `info`, `warn`, `error`, `fatal`.

3.  Send a `HUP` signal to the daemon to cause it to reload its configuration.
    On Linux hosts, use the following command.

    ```console
    $ sudo kill -SIGHUP $(pidof dockerd)
    ```

    On Windows hosts, restart Docker.

Instead of following this procedure, you can also stop the Docker daemon and
Title: Enabling Debugging for Docker Daemon
Summary
This section describes two methods to enable debugging for the Docker daemon. The recommended way is to edit the `daemon.json` file, typically located in `/etc/docker/`, and set the `debug` key to `true`. After modifying the file, the daemon needs to reload its configuration by sending a `HUP` signal on Linux or restarting Docker on Windows. Alternatively, you can stop the Docker daemon and restart it with the `--debug` flag.