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Example of using apache as a proxy (#576)

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This help to deal with subdomain, https redirection...
If you already have a server hosting other services, this can be
convenient to use such a configuration
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Mathieu Maret 2016-06-23 11:29:50 +02:00 committed by Fabian Affolter
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---
layout: page
title: "Apache Configuration"
description: "Configure Apache to work with home assistant as a subdomain"
date: 2016-06-20 13:05
sidebar: true
comments: false
sharing: true
footer: true
ha_category: Infrastructure
---
This is an example about how you can configure Apache to act as a proxy for home assistant.
This is useful if you want to have:
* a subdomain redirecting to your home assistant instance
* several subdomain for several instance
* HTTPS redirection
#### {% linkable_title Subdomain %}
So you already have a working Apache server available at example.org.
Your home assistant is correctly working on this web server and available at localhost:8123
To be able to access to your home assistant instance by using https://home.example.org, add to following file into `/etc/httpd/conf/extra/hass.conf`
```apacheconf
<VirtualHost *:443>
ProxyPreserveHost On
ProxyRequests Off
ServerName home.example.org
ProxyPass / http://localhost:8123/
ProxyPassReverse / http://localhost:8123/
</VirtualHost>
```
and make sure that this file is read by apache's main configiuration file `/etc/httpd/conf/httpd.conf`
```apacheconf
...
Include conf/extra/hass.conf
...
```
If you don't want HTTPS, you can change `<VirtualHost *:443>` to `<VirtualHost *:80>` or better consider redirecting all HTTP to HTTPS.
#### {% linkable_title Multiple Instance %}
You already have home assistant running on localhost:8123 and available at home.example.org as describe before.
The configuration file for this home assistant is available in `/home/alice/.homeassistant/configuration.yaml`
You want another instance available at https://countryside.example.org
You can either :
* Create a new user, `bob`, to hold the configuration file in `/home/bob/.homeassistant/configuration.yaml` and run home assistant as this new user
* Create another configuration directory in `/home/alice/.homeassistan2/configuration.yaml` and run home assistant using `hass --config /home/alice/.homeassistant2/`
In both solution, change port number used by modifying `configuration.yaml`
```yaml
http:
server_port: 8124
...
```
Start home assistant: Now, you have another instance running on localhost:8124
To access this instance by using https://countryside.example.org add to `/etc/httpd/conf/extra/hass.conf`
```apacheconf
<VirtualHost *:443>
ProxyPreserveHost On
ProxyRequests Off
ServerName countryside.example.org
ProxyPass / http://localhost:8124/
ProxyPassReverse / http://localhost:8124/
</VirtualHost>
```
#### {% linkable_title HTTP to HTTPS redirection %}
Add to your `/etc/httpd/conf/extra/hass.conf`
```apacheconf
<VirtualHost *:80>
ServerName example.org
ServerSignature Off
RewriteEngine on
RewriteCond %{HTTPS} !=on
RewriteRule .* https://%{SERVER_NAME}%{REQUEST_URI} [NE,R,L]
</VirtualHost>
```