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      <title>ELFK 架构分析 Nginx 访问日志实战：Filebeat &#43; Logstash &#43; Kibana 全流程</title>
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      <description>完整演示基于 ELFK 架构分析 Nginx 访问日志的全流程：Logstash 编写 05-beats-filter-es.conf（beats 输入 9999、grok 用 HTTPD_COMBINEDLOG 解析 combined 格式、geoip 指定本地 GeoLite2-City.mmdb、ruby 将经纬度拼成 dawn-geo 的 [lon,lat] 数组、useragent 解析 dawn-device、rename 规避字段冲突、date 对齐 @timestamp），输出到 Elasticsearch 的 dawn-logstash-nginx 索引；Filebeat 启用 nginx 模块并将数据推送至 Logstash；最后在 Kibana 建立索引模式，制作访客地理分布 Maps、设备类型/操作系统饼图、响应状态码柱状图，并整合进统一 Dashboard。</description>
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