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🚜 Merges/Redirect Wake_on_Lan component pages
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Klaas Schoute
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---
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layout: page
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title: "Wake on LAN Switch"
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description: "Instructions on how to integrate a wake on lan switch."
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date: 2016-03-18 18:00
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sidebar: true
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comments: false
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sharing: true
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footer: true
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logo: ethernet.png
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ha_category: Network
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ha_release: 0.16
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ha_iot_class: Local Polling
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---
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The `wake_on_lan` (WOL) switch platform allows you to turn on a [WOL](https://en.wikipedia.org/wiki/Wake-on-LAN) enabled computer.
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## {% linkable_title Configuration %}
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<p class='note warning'>
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The WOL switch can only turn on your computer and monitor the state. There is no universal way to turn off a computer remotely. The `turn_off` variable is there to help you call a script when you have figured out how to remotely turn off your computer.
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See below for suggestions on how to do this.
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</p>
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To enable this switch in your installation, add the following to your `configuration.yaml` file:
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```yaml
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# Example configuration.yaml entry
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switch:
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- platform: wake_on_lan
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mac_address: "00-01-02-03-04-05"
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```
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{% configuration %}
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mac_address:
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description: MAC address to send the wake up command to.
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required: true
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type: string
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name:
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description: The name of the switch.
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required: false
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default: Wake on LAN
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type: string
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host:
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description: The IP address or hostname to check the state of the device (on/off).
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required: false
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type: string
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turn_off:
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description: Defines an [action](/getting-started/automation/) to run when the switch is turned off.
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required: false
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type: string
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broadcast_address:
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description: The IP address of the host to send the magic packet to.
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required: false
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default: 255.255.255.255
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type: string
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{% endconfiguration %}
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## {% linkable_title Examples %}
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Here are some real-life examples of how to use the **turn_off** variable.
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### {% linkable_title Suspending Linux %}
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Suggested recipe for letting the `turn_off` script suspend a Linux computer (the **target**)
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from Home Assistant running on another Linux computer (the **server**).
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1. On the **server**, log in as the user account Home Assistant is running under. (I'm using `hass` in this example)
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2. On the **server**, create ssh keys by running `ssh-keygen`. Just press enter on all questions.
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3. On the **target**, create a new account that Home Assistant can ssh into: `sudo adduser hass`. Just press enter on all questions except password. I recommend using the same user name as on the server. If you do, you can leave out `hass@` in the ssh commands below.
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4. On the **server**, transfer your public ssh key by `ssh-copy-id hass@TARGET` where TARGET is your target machine's name or IP address. Enter the password you created in step 3.
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5. On the **server**, verify that you can reach your target machine without password by `ssh TARGET`.
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6. On the **target**, we need to let the hass user execute the program needed to suspend/shut down the target computer. I'm using `pm-suspend`, use `poweroff` to turn off the computer. First, get the full path: `which pm-suspend`. On my system, this is `/usr/sbin/pm-suspend`.
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7. On the **target**, using an account with sudo access (typically your main account), `sudo visudo`. Add this line last in the file: `hass ALL=NOPASSWD:/usr/sbin/pm-suspend`, where you replace `hass` with the name of your user on the target, if different, and `/usr/sbin/pm-suspend` with the command of your choice, if different.
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8. On the **server**, add the following to your configuration, replacing TARGET with the target's name:
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```yaml
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switch:
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- platform: wake_on_lan
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name: "TARGET"
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...
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turn_off:
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service: shell_command.turn_off_TARGET
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shell_command:
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turn_off_TARGET: 'ssh hass@TARGET sudo pm-suspend'
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```
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@ -8,13 +8,21 @@ comments: false
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sharing: true
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footer: true
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logo: ethernet.png
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ha_category: Network
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ha_category:
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- Network
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- Switch
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ha_release: 0.49
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ha_iot_class: Local Push
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redirect_from:
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- /components/switch.wake_on_lan/
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---
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The `wake_on_lan` component enables the ability to send _magic packets_ to [Wake on LAN](https://en.wikipedia.org/wiki/Wake-on-LAN) capable devices, to turn them on.
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There is currently support for the following device types within Home Assistant:
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- [Switch](#switch)
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## {% linkable_title Configuration %}
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To use this component in your installation, add the following to your `configuration.yaml` file:
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@ -44,3 +52,78 @@ Sample service data:
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"mac":"00:40:13:ed:f1:32"
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}
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```
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## {% linkable_title Switch %}
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The `wake_on_lan` (WOL) switch platform allows you to turn on a [WOL](https://en.wikipedia.org/wiki/Wake-on-LAN) enabled computer.
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### {% linkable_title Switch configuration %}
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<p class='note warning'>
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The WOL switch can only turn on your computer and monitor the state. There is no universal way to turn off a computer remotely. The `turn_off` variable is there to help you call a script when you have figured out how to remotely turn off your computer.
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See below for suggestions on how to do this.
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</p>
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To enable this switch in your installation, add the following to your `configuration.yaml` file:
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```yaml
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# Example configuration.yaml entry
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switch:
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- platform: wake_on_lan
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mac_address: "00-01-02-03-04-05"
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```
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{% configuration %}
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mac_address:
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description: MAC address to send the wake up command to.
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required: true
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type: string
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name:
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description: The name of the switch.
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required: false
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default: Wake on LAN
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type: string
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host:
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description: The IP address or hostname to check the state of the device (on/off).
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required: false
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type: string
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turn_off:
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description: Defines an [action](/getting-started/automation/) to run when the switch is turned off.
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required: false
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type: string
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broadcast_address:
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description: The IP address of the host to send the magic packet to.
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required: false
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default: 255.255.255.255
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type: string
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{% endconfiguration %}
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### {% linkable_title Examples %}
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Here are some real-life examples of how to use the **turn_off** variable.
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#### {% linkable_title Suspending Linux %}
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Suggested recipe for letting the `turn_off` script suspend a Linux computer (the **target**)
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from Home Assistant running on another Linux computer (the **server**).
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1. On the **server**, log in as the user account Home Assistant is running under. (I'm using `hass` in this example)
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2. On the **server**, create ssh keys by running `ssh-keygen`. Just press enter on all questions.
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3. On the **target**, create a new account that Home Assistant can ssh into: `sudo adduser hass`. Just press enter on all questions except password. I recommend using the same user name as on the server. If you do, you can leave out `hass@` in the ssh commands below.
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4. On the **server**, transfer your public ssh key by `ssh-copy-id hass@TARGET` where TARGET is your target machine's name or IP address. Enter the password you created in step 3.
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5. On the **server**, verify that you can reach your target machine without password by `ssh TARGET`.
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6. On the **target**, we need to let the hass user execute the program needed to suspend/shut down the target computer. I'm using `pm-suspend`, use `poweroff` to turn off the computer. First, get the full path: `which pm-suspend`. On my system, this is `/usr/sbin/pm-suspend`.
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7. On the **target**, using an account with sudo access (typically your main account), `sudo visudo`. Add this line last in the file: `hass ALL=NOPASSWD:/usr/sbin/pm-suspend`, where you replace `hass` with the name of your user on the target, if different, and `/usr/sbin/pm-suspend` with the command of your choice, if different.
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8. On the **server**, add the following to your configuration, replacing TARGET with the target's name:
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```yaml
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switch:
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- platform: wake_on_lan
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name: "TARGET"
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...
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turn_off:
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service: shell_command.turn_off_TARGET
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shell_command:
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turn_off_TARGET: 'ssh hass@TARGET sudo pm-suspend'
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```
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