ubuntu 下source和NDS配置

1、在/etc/apt/sources.list文件，可以添加如下地址：

deb http://mirrors.163.com/ubuntu/ quantal main universe restricted multiverse
deb-src http://mirrors.163.com/ubuntu/ quantal main universe restricted multiverse
deb http://mirrors.163.com/ubuntu/ quantal-security universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ quantal-security universe main multiverse restricted
deb http://mirrors.163.com/ubuntu/ quantal-updates universe main multiverse restricted
deb http://mirrors.163.com/ubuntu/ quantal-proposed universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ quantal-proposed universe main multiverse restricted
deb http://mirrors.163.com/ubuntu/ quantal-backports universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ quantal-backports universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ quantal-updates universe main multiverse restricted
deb http://mirrors.sohu.com/ubuntu/ quantal main restricted
deb-src http://mirrors.sohu.com/ubuntu/ quantal main restricted
deb http://mirrors.sohu.com/ubuntu/ quantal-updates main restricted
deb-src http://mirrors.sohu.com/ubuntu/ quantal-updates main restricted
deb http://mirrors.sohu.com/ubuntu/ quantal universe
deb-src http://mirrors.sohu.com/ubuntu/ quantal universe
deb http://mirrors.sohu.com/ubuntu/ quantal-updates universe
deb-src http://mirrors.sohu.com/ubuntu/ quantal-updates universe
deb http://mirrors.sohu.com/ubuntu/ quantal multiverse
deb-src http://mirrors.sohu.com/ubuntu/ quantal multiverse
deb http://mirrors.sohu.com/ubuntu/ quantal-updates multiverse
deb-src http://mirrors.sohu.com/ubuntu/ quantal-updates multiverse
deb http://mirrors.sohu.com/ubuntu/ quantal-backports main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ quantal-backports main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ quantal-security main restricted
deb-src http://mirrors.sohu.com/ubuntu/ quantal-security main restricteddeb http://mirrors.sohu.com/ubuntu/ quantal-security multiverse
deb-src http://mirrors.sohu.com/ubuntu/ quantal-security multiverse
deb http://extras.ubuntu.com/ubuntu quantal main
deb-src http://extras.ubuntu.com/ubuntu quantal main

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

deb http://tw.archive.ubuntu.com/ubuntu/ quantal main universe restricted multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu/ quantal main universe restricted multiverse
deb http://tw.archive.ubuntu.com/ubuntu/ quantal-security universe main multiverse restricted
deb-src http://tw.archive.ubuntu.com/ubuntu/ quantal-security universe main multiverse restricted
deb http://tw.archive.ubuntu.com/ubuntu/ quantal-updates universe main multiverse restricted
deb-src http://tw.archive.ubuntu.com/ubuntu/ quantal-updates universe main multiverse restricted
deb http://mirrors.sohu.com/ubuntu/ quantal-security universe
deb-src http://mirrors.sohu.com/ubuntu/ quantal-security universe

2.使用sudo apt-get update 命令更新源。

DNS配置：

1、修改/etc/resolvconf/resolv.conf.d/base文件添加如果配置

电信DNS服务：

nameserver 202.96.134.133
nameserver 202.96.128.68

或者谷歌DNS服务：

nameserver 8.8.8.8
nameserver 8.8.4.4

2、使用sudo resolvconf -u更新配置，在/etc/resolvconf.conf文件中查看配置是否生效