我是PacketBeat和Kibana的新手。我正按照https://www.elastic.co/guide/en/beats/packetbeat/master/packetbeat-getting-started.html#_sample_kibana_dashboards
中提到的教程进行操作根据步骤，在与Packetbeat集成的同时加载Kibana的示例页面时，我遇到了以下错误。不知道为什么会这样呢
curl
Loading search Cache-transactions:
<HEAD><TITLE>Unknown Host</TITLE></HEAD>
<BODY BGCOLOR="white" FGCOLOR="black"><H1>Unknown Host</H1><HR>
<FONT FACE="Helvetica,Arial"><B>
Description: Unable to locate the server named "<em>localhost</em>" --- the server does not have a DNS entry. Perhaps there is a misspelling in the server name, or the server no longer exists. Double-check the name and try again.</B></FONT>
<HR>
<!-- default "Unknown Host" response (504) -->
</BODY>