最基本的物质需求得到满足之后，唯一能够不断增加个人幸福感的事情就是帮助他人

网易悄然上线了一个开源软件镜像站点（mirrors.163.com），提供了大量开源操作系统ISO镜像文件下载和开源应用软件的更新等服务。网易开 源软件镜像站点提供 Debian 、 Ubuntu 等 Linux 发行版的软件源服务。目前，网易是国内首个提供如此多的开源软件镜像的大型门户站点。

deb http://mirrors.163.com/ubuntu/ intrepid main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-backports main restricted universe multiverse

以上是使用网易的ubuntu升级原设置。

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