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<h3>Auth username</h3>
<p>If your Elasticsearch server requires an HTTP basic auth username and password to access it, you may provide the <strong>username</strong> here. <strong>Note:</strong> The core Elasticsearch software itself does not provide username or password features, but you may achieve this functionality by using a plugin or by accessing it through a proxy.</p>
<p>This setting cannot be changed through the web interface. You may change it by setting a value in your config.php file for the following config variable:</p>
<p><code>$cfg->plugin_search_elasticsearch_username</code>.</p>
