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            1. 如何用幾個簡單的命令改善你的Linux安全

              本文中,我們將討論如何通過一些Linux的安全命令,加固你的Linux系統。 在最開始,我們需要問的一個問題是:Linux是已經足夠被安全加固了嗎?答案當然是否定的。那些嫻熟的攻擊者所帶來的危險是與日俱增的。每天、甚至是每小時都有新的漏洞被發現。對這些漏洞的利用方法通常建立在它們被發現后的數小時之內。一些漏洞甚至直到有人將其利用到攻擊的主機上才被發現。可見,安全應該是我們所有人需要關心的。因此,我…

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              近日,安全研究人員開發出一種新的BIOS bootkit,它可以竊取敏感數據,以及流行操作系統使用的PGP密鑰。包括華碩、惠普、宏基、技嘉以及微星等在內的各大供應商的主板都受到該病毒影響。 BIOS bootkits是真實存在的。斯諾登在披露NSA ANT部門使用的監視工具集時,曾提到過BIOS bootkits。這些惡意軟件能夠入侵受害機器的BIOS,以此確保隱藏的持久性以及實現復雜的逃避技術。…

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