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wireshark 使用-pcap导出指定数据

1.下载我选择的是稳定版1.18.0 http://nginx.org/download/nginx-1.18.0.tar.gz想下别的版本：下载页面地址 http://nginx.org/en/download.html2.linux 下载cd /opt/toolwget http://nginx.org/download/nginx-1.18.0.tar.gztar zxvf nginx-1.18.0.tar.gz3.安装cd nginx-1.18.0./config