"给所有文件最高权限，问题总能解决"——这大概是Linux新手最容易踩的坑。就像给自家大门配了把全小区通用的钥匙，你以为方便了自己，其实连路过的野猫都能推门而入。去年某云服务商因管理员误设777权限，导致300万用户数据被爬虫横扫，事后工程师在日志 ...

Someone actually did that on our DHCP server today. I was about to shove the entire keyboard up or down an orrifice of his. We had never bothered to back up the server either, so someone had to ...