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<section id="architecture">
<span id="id1"></span><h1>Architecture<a class="headerlink" href="#architecture" title="Link to this heading">¶</a></h1>
<aside class="sidebar">
<p class="sidebar-title">Further reading</p>
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<li><p>Reverse Proxy: <a class="reference internal" href="installation-apache.html#apache-searxng-site"><span class="std std-ref">Apache</span></a> & <a class="reference internal" href="installation-nginx.html#nginx-searxng-site"><span class="std std-ref">nginx</span></a></p></li>
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<p>Herein you will find some hints and suggestions about typical architectures of
SearXNG infrastructures.</p>
<section id="uwsgi-setup">
<span id="architecture-uwsgi"></span><h2>uWSGI Setup<a class="headerlink" href="#uwsgi-setup" title="Link to this heading">¶</a></h2>
<p>We start with a <em>reference</em> setup for public SearXNG instances which can be build
up and maintained by the scripts from our <a class="reference internal" href="../utils/index.html#toolboxing"><span class="std std-ref">DevOps tooling box</span></a>.</p>
<figure class="align-default" id="id2">
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<p><span class="caption-number">Fig. 2 </span><span class="caption-text">Reference architecture of a public SearXNG setup.</span><a class="headerlink" href="#id2" title="Link to this image">¶</a></p>
</figcaption>
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<p>The reference installation activates <code class="docutils literal notranslate"><span class="pre">server.limiter</span></code>, <code class="docutils literal notranslate"><span class="pre">server.image_proxy</span></code>
and <code class="docutils literal notranslate"><span class="pre">ui.static_use_hash</span></code> (<a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/utils/templates/etc/searxng/settings.yml">/etc/searxng/settings.yml</a>)</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="c1"># SearXNG settings</span>
<span class="nt">use_default_settings</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">true</span>
<span class="nt">general</span><span class="p">:</span>
<span class="w"> </span><span class="nt">debug</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">false</span>
<span class="w"> </span><span class="nt">instance_name</span><span class="p">:</span><span class="w"> </span><span class="s">"SearXNG"</span>
<span class="nt">search</span><span class="p">:</span>
<span class="w"> </span><span class="nt">safe_search</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">2</span>
<span class="w"> </span><span class="nt">autocomplete</span><span class="p">:</span><span class="w"> </span><span class="s">'duckduckgo'</span>
<span class="nt">server</span><span class="p">:</span>
<span class="w"> </span><span class="c1"># Is overwritten by ${SEARXNG_SECRET}</span>
<span class="w"> </span><span class="nt">secret_key</span><span class="p">:</span><span class="w"> </span><span class="s">"ultrasecretkey"</span>
<span class="w"> </span><span class="nt">limiter</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">true</span>
<span class="w"> </span><span class="nt">image_proxy</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">true</span>
<span class="w"> </span><span class="c1"># public URL of the instance, to ensure correct inbound links. Is overwritten</span>
<span class="w"> </span><span class="c1"># by ${SEARXNG_URL}.</span>
<span class="w"> </span><span class="c1"># base_url: http://example.com/location</span>
<span class="nt">redis</span><span class="p">:</span>
<span class="w"> </span><span class="c1"># URL to connect redis database. Is overwritten by ${SEARXNG_REDIS_URL}.</span>
<span class="w"> </span><span class="nt">url</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">unix:///usr/local/searxng-redis/run/redis.sock?db=0</span>
<span class="nt">ui</span><span class="p">:</span>
<span class="w"> </span><span class="nt">static_use_hash</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">true</span>
</pre></div>
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