给学习linux的朋友提供一个收藏资源《ChinaITLab Linux实战工程师网校课程-8CD》：

http://down.315safe.com:315/jiaocheng/linux/cd01-系统管理[Ⅰ].rar
http://down.315safe.com:315/jiaocheng/linux/cd02-系统管理[Ⅱ].rar
http://down.315safe.com:315/jiaocheng/linux/cd03-系统管理[Ⅲ].rar
http://down.315safe.com:315/jiaocheng/linux/cd04-Shell编程[Ⅰ].rar
http://down.315safe.com:315/jiaocheng/linux/cd05-Shell编程[Ⅱ].rar
http://down.315safe.com:315/jiaocheng/linux/cd06-PHP_MySQL[Ⅰ].rar
http://down.315safe.com:315/jiaocheng/linux/cd07-PHP_MySQL[Ⅱ].rar
http://down.315safe.com:315/jiaocheng/linux/cd08-PHP_MySQL[Ⅲ].rar

以上地址用迅雷下载，存在多个镜象，速度要快点。