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<section id="apache-httpd">
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<h1>Apache httpd<a class="headerlink" href="#apache-httpd" title="Link to this heading">¶</a></h1>
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<p><a class="reference external" href="https://httpd.apache.org/">Apache httpd</a> is a fast, production level HTTP server. When serving
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your application with one of the WSGI servers listed in <a class="reference internal" href="index.html"><span class="doc">Deploying to Production</span></a>, it
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is often good or necessary to put a dedicated HTTP server in front of
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it. This “reverse proxy” can handle incoming requests, TLS, and other
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security and performance concerns better than the WSGI server.</p>
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<p>httpd can be installed using your system package manager, or a pre-built
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executable for Windows. Installing and running httpd itself is outside
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the scope of this doc. This page outlines the basics of configuring
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httpd to proxy your application. Be sure to read its documentation to
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understand what features are available.</p>
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<section id="domain-name">
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<h2>Domain Name<a class="headerlink" href="#domain-name" title="Link to this heading">¶</a></h2>
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<p>Acquiring and configuring a domain name is outside the scope of this
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doc. In general, you will buy a domain name from a registrar, pay for
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server space with a hosting provider, and then point your registrar
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at the hosting provider’s name servers.</p>
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<p>To simulate this, you can also edit your <code class="docutils literal notranslate"><span class="pre">hosts</span></code> file, located at
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<code class="docutils literal notranslate"><span class="pre">/etc/hosts</span></code> on Linux. Add a line that associates a name with the
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local IP.</p>
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<p>Modern Linux systems may be configured to treat any domain name that
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ends with <code class="docutils literal notranslate"><span class="pre">.localhost</span></code> like this without adding it to the <code class="docutils literal notranslate"><span class="pre">hosts</span></code>
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file.</p>
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<div class="literal-block-wrapper docutils container" id="id2">
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<div class="code-block-caption"><span class="caption-text"><code class="docutils literal notranslate"><span class="pre">/etc/hosts</span></code></span><a class="headerlink" href="#id2" title="Link to this code">¶</a></div>
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<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="mf">127.0.0.1</span> <span class="n">hello</span><span class="o">.</span><span class="n">localhost</span>
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</pre></div>
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</div>
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</div>
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</section>
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<section id="configuration">
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<h2>Configuration<a class="headerlink" href="#configuration" title="Link to this heading">¶</a></h2>
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<p>The httpd configuration is located at <code class="docutils literal notranslate"><span class="pre">/etc/httpd/conf/httpd.conf</span></code> on
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Linux. It may be different depending on your operating system. Check the
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docs and look for <code class="docutils literal notranslate"><span class="pre">httpd.conf</span></code>.</p>
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<p>Remove or comment out any existing <code class="docutils literal notranslate"><span class="pre">DocumentRoot</span></code> directive. Add the
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config lines below. We’ll assume the WSGI server is listening locally at
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<code class="docutils literal notranslate"><span class="pre">http://127.0.0.1:8000</span></code>.</p>
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<div class="literal-block-wrapper docutils container" id="id3">
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<div class="code-block-caption"><span class="caption-text"><code class="docutils literal notranslate"><span class="pre">/etc/httpd/conf/httpd.conf</span></code></span><a class="headerlink" href="#id3" title="Link to this code">¶</a></div>
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<div class="highlight-apache notranslate"><div class="highlight"><pre><span></span><span class="nb">LoadModule</span><span class="w"> </span>proxy_module<span class="w"> </span>modules/mod_proxy.so
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<span class="nb">LoadModule</span><span class="w"> </span>proxy_http_module<span class="w"> </span>modules/mod_proxy_http.so
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<span class="nb">ProxyPass</span><span class="w"> </span>/<span class="w"> </span>http://127.0.0.1:8000/
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<span class="nb">RequestHeader</span><span class="w"> </span>set<span class="w"> </span>X-Forwarded-Proto<span class="w"> </span>http
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<span class="nb">RequestHeader</span><span class="w"> </span>set<span class="w"> </span>X-Forwarded-Prefix<span class="w"> </span>/
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</pre></div>
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</div>
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</div>
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<p>The <code class="docutils literal notranslate"><span class="pre">LoadModule</span></code> lines might already exist. If so, make sure they are
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uncommented instead of adding them manually.</p>
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<p>Then <a class="reference internal" href="proxy_fix.html"><span class="doc">Tell Flask it is Behind a Proxy</span></a> so that your application uses the <code class="docutils literal notranslate"><span class="pre">X-Forwarded</span></code>
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headers. <code class="docutils literal notranslate"><span class="pre">X-Forwarded-For</span></code> and <code class="docutils literal notranslate"><span class="pre">X-Forwarded-Host</span></code> are automatically
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set by <code class="docutils literal notranslate"><span class="pre">ProxyPass</span></code>.</p>
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<h3>Contents</h3>
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<ul>
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<li><a class="reference internal" href="#">Apache httpd</a><ul>
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<li><a class="reference internal" href="#domain-name">Domain Name</a></li>
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<li><a class="reference internal" href="#configuration">Configuration</a></li>
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