《Operating System Concepts》学习第 57 天，p629-p635 总结，总计 7 页。

一、技术总结

1.system and network threats

(1)attack network traffic

二、英语总结(生词：1)

1.unleash

(1)leash：laxus("loose", 参考 lax)

c. a piece of rope for leading animals(绳索)。vt. put a leash on(a dog)(拴住)。

(2)unleash: un-("not") + leash

(3)示例

It was not until several years later, however, that an article in issue 49 of Phrack magazine (“Smashing the Stack for Fun and Profit”) introduced the exploitation technique to the masses, unleashing a deluge of exploits(《Operating System Concepts》第 630 页)。

关于英语的注解同步更新汇总到 https://github.com/codists/English-In-CS-Books 仓库。

三、其它

今天没有什么想说的。

四、参考资料

1. 编程

(1) Abraham Silberschatz，Peter Baer Galvin，Greg Gagne《Operating System Concepts》：https://book.douban.com/subject/30272539/

2. 英语

(1) Etymology Dictionary：https://www.etymonline.com

(2) Cambridge Dictionary：https://dictionary.cambridge.org

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