鸟哥的Linux私房菜，经典的Linux教程，包括了基础篇、网络篇、安全篇，已打包成pdf版，无密码-Brother of the Linux private birds, classic Linux tutorials, including the basis for articles, Web articles, security papers, have been packaged into a pdf version, no password

适合新手学习linux，无密码，讲解的非常详细透彻。看看吧！-Suitable for the novice to learn linux, no password, to explain the very detailed and thorough. See it!

linux文件系统，纯净版本，经测试有效，用户名root，无密码，欢迎大家使用。(Linux file system, pure version, tested effectively, username root, no password, welcome to use.)