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Johannes Olzem
2025-11-09 20:06:24 +01:00
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blog/quick-fixes/homeassistant-proxy/index.html
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="icon" href="/favico.ico">
</head>
<body class="body">
<header>
<a href="/">
<img src="/img/logo.png">
<body>
<nav>
<a href="/" class="header-logo">
<img src="/img/header-logo.webp" alt="logo">
</a>
<a href="/about/">About</a>
<a href="/blog/">Blog</a>
<a href="/contact/">Contact</a>
</header>
<span class="header-text">Johannes Olzem</span>
<ul>
<li>
<a href="/about/">About</a>
</li>
<li>
<a href="/blog/">Blog</a>
</li>
<li>
<a href="/contact/">Contact</a>
</li>
</ul>
</nav>
<main>
<h1>Johannes Olzem</h1>
<blockquote>Less is more</blockquote>
<h1>Quick fix</h1>
<h2>HomeAssistant not connecting over reverse proxy</h2>
<p>
Make sure you have enabled <em>Websockets Supports</em> or similar
functionality in your reverse proxy client.<br><br>
If you are getting a <em>400 Bad Request</em> error, find the
HomeAssistant log file and look for the following error message:<br>
<code>A request from a reverse proxy was received from 12.34.56.78, but
your HTTP integration is not set-up for reverse proxies</code><br><br>
In your <code>configuration.yaml</code> file, add the following lines:<br>
<pre>
http:<br>
use_x_forwarded_for: true<br>
trusted_proxies:<br>
- 12.34.56.78 # The IP address from the error message
</pre>
Make sure you have enabled <em>Websockets Support</em> or similar
functionality in your reverse proxy client.
</p>
<p>
If you are getting a <code>400 Bad Request</code> error, find the
HomeAssistant log file and look for the following error message:
</p>
<p class="code">
A request from a reverse proxy was received from 12.34.56.78, but your
HTTP integration is not set-up for reverse proxies
</p>
<p>
In your <code>configuration.yaml</code> file, add the following lines:
</p>
<p class="code">
http:<br>
&emsp;use_x_forwarded_for: true<br>
&emsp;trusted_proxies:<br>
&emsp;&emsp;- 12.34.56.78 # The IP address from the error message
</p>
<h2>Explanation</h2>
<p>
HomeAssistant uses websockets to communicate with the browser.
</p>
<h3>Explanation</h3>
<p>
HomeAssistant uses websockets to communicate with the browser.<br><br>
If you are using a reverse proxy, the IP address of the incoming
connection is not trusted and gets rejected by HomeAssistant.<br>
connection is not trusted and gets rejected by HomeAssistant.
</p>
</main>
<footer>