对于主机的入侵痕迹排查，主要从网络连接、进程信息、后门账号、计划任务、登录日志、自启动项、文件等方面进行排查。 1. 显示隐藏文件 2. 查看网络情况 主

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美化大师上面PPT素材需要收费，Piti插件可以快速找到相关图片，具体功能的页面，可以自动生成ppt； iSlide插件： 口袋动画相关教程： 快

​ Raspberry Pi is the most attractive SBC among the developers, programmers, and students. It helps to build any prototypes and develop applications or software. Nowadays, Raspberry Pi can generate output like a desktop computer and has the ability to serve individuals and small businesses. Low power draw, small form factor, no noise, and solid-state storage are the main reasons behind the widespread use of Raspberry Pi. 1. 引脚

​ 由人盯着监视屏幕，人总有疲劳限度的。研究表明，监控操作人员盯着电视墙屏幕超过10分钟后将漏掉90%的视频信息。由于人工筛选数据的低效率和低

1. Syntax Selector − A selector is an HTML tag at which a style will be applied. This could be any tag like or etc. Property − A property is a type of attribute of HTML tag. Put simply, all the HTML attributes are converted into CSS properties. They could be color, border etc. Value − Values are assigned to properties. For example, color property can have value either red