讓Ubuntu網速提高N倍,你須要更換你的源

打開終端 , 先作個備份（以防不測）

sudo cp /etc/apt/sources.list /etc/apt/sources.list_bak

而後

sudo gedit /etc/apt/sources.list

在打開的頁面裏面添加你的源：

Archive.ubuntu.com更新服務器（歐洲，此爲官方源，電信網通用戶使用)：

deb http://archive.ubuntu.com/ubuntu/ hardy main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ hardy-security main restricted universe m ultiverse
deb http://archive.ubuntu.com/ubuntu/ hardy-updates main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ hardy-proposed main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ hardy main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ hardy-security main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ hardy-updates main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ hardy-proposed main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse

Ubuntu.cn99.com更新服務器（江蘇省常州市電信，推薦電信用戶使用）：

deb http://ubuntu.cn99.com/ubuntu/ hardy main restricted universe multiverse 
deb http://ubuntu.cn99.com/ubuntu/ hardy-security main restricted universe multiverse 
deb http://ubuntu.cn99.com/ubuntu/ hardy-updates main restricted universe multiverse 
deb http://ubuntu.cn99.com/ubuntu/ hardy-proposed main restricted universe multiverse 
deb http://ubuntu.cn99.com/ubuntu/ hardy-backports main restricted universe multiverse 
deb-src http://ubuntu.cn99.com/ubuntu/ hardy main restricted universe multiverse 
deb-src http://ubuntu.cn99.com/ubuntu/ hardy-security main restricted universe multiverse 
deb-src http://ubuntu.cn99.com/ubuntu/ hardy-updates main restricted universe multiverse 
deb-src http://ubuntu.cn99.com/ubuntu/ hardy-proposed main restricted universe multiverse 
deb-src http://ubuntu.cn99.com/ubuntu/ hardy-backports main restricted universe multivers

網易163更新服務器：

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

***********************

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

*****************************************

Mirrors.shlug.org更新服務器（電信服務器，Ubuntu China Official Mirror, maintained by Shanghai Linux User Group）：

deb http://cn.archive.ubuntu.com/ubuntu hardy main restricted universe multiverse 
deb http://cn.archive.ubuntu.com/ubuntu hardy-security main restricted universe multiverse 
deb http://cn.archive.ubuntu.com/ubuntu hardy-updates main restricted universe multiverse 
deb http://cn.archive.ubuntu.com/ubuntu hardy-backports main restricted universe multiverse 
deb http://cn.archive.ubuntu.com/ubuntu hardy-proposed main restricted universe multiverse 
deb-src http://cn.archive.ubuntu.com/ubuntu hardy main restricted universe multiverse 
deb-src http://cn.archive.ubuntu.com/ubuntu hardy-security main restricted universe multiverse 
deb-src http://cn.archive.ubuntu.com/ubuntu hardy-updates main restricted universe multiverse 
deb-src http://cn.archive.ubuntu.com/ubuntu hardy-backports main restricted universe multiverse 
deb-src http://cn.archive.ubuntu.com/ubuntu hardy-proposed main restricted universe multiverse

Mirror.lupaworld.com更新服務器（浙江省杭州市雙線服務器）：

deb http://mirror.lupaworld.com/ubuntu hardy main restricted universe multiverse 
deb http://mirror.lupaworld.com/ubuntu hardy-security main restricted universe multiverse 
deb http://mirror.lupaworld.com/ubuntu hardy-updates main restricted universe multiverse 
deb http://mirror.lupaworld.com/ubuntu hardy-backports main restricted universe multiverse 
deb http://mirror.lupaworld.com/ubuntu hardy-proposed main restricted universe multiverse 
deb-src http://mirror.lupaworld.com/ubuntu hardy main restricted universe multiverse 
deb-src http://mirror.lupaworld.com/ubuntu hardy-security main restricted universe multiverse 
deb-src http://mirror.lupaworld.com/ubuntu hardy-updates main restricted universe multiverse 
deb-src http://mirror.lupaworld.com/ubuntu hardy-backports main restricted universe multiverse 
deb-src http://mirror.lupaworld.com/ubuntu hardy-proposed main restricted universe multiverse

廈門大學更新服務器（教育網服務器）：

deb ftp://ubuntu.realss.cn/ubuntu/ hardy main restricted universe multiverse 
deb ftp://ubuntu.realss.cn/ubuntu/ hardy-backports restricted universe multiverse 
deb ftp://ubuntu.realss.cn/ubuntu/ hardy-proposed main restricted universe multiverse 
deb ftp://ubuntu.realss.cn/ubuntu/ hardy-security main restricted universe multiverse 
deb ftp://ubuntu.realss.cn/ubuntu/ hardy-updates main restricted universe multiverse 
deb-src ftp://ubuntu.realss.cn/ubuntu/ hardy main restricted universe multiverse 
deb-src ftp://ubuntu.realss.cn/ubuntu/ hardy-backports main restricted universe multiverse 
deb-src ftp://ubuntu.realss.cn/ubuntu/ hardy-proposed main restricted universe multiverse 
deb-src ftp://ubuntu.realss.cn/ubuntu/ hardy-security main restricted universe multiverse 
deb-src ftp://ubuntu.realss.cn/ubuntu/ hardy-updates main restricted universe multiverse

成都市 電子科技大學更新服務器（教育網，推薦校園網和網通用戶使用）：

deb http://ubuntu.uestc.edu.cn/ubuntu/ hardy main multiverse restricted universe 
deb http://ubuntu.uestc.edu.cn/ubuntu/ hardy-backports main multiverse restricted universe 
deb http://ubuntu.uestc.edu.cn/ubuntu/ hardy-proposed main multiverse restricted universe 
deb http://ubuntu.uestc.edu.cn/ubuntu/ hardy-security main multiverse restricted universe 
deb http://ubuntu.uestc.edu.cn/ubuntu/ hardy-updates main multiverse restricted universe 
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ hardy main multiverse restricted universe 
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ hardy-backports main multiverse restricted universe 
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ hardy-proposed main multiverse restricted universe 
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ hardy-security main multiverse restricted universe 
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ hardy-updates main multiverse restricted universe

== 若是沒法解析uestc.edu.cn域名，請使用如下地址 ==

deb http://ubuntu.dormforce.net/ubuntu/ hardy main multiverse restricted universe 
deb http://ubuntu.dormforce.net/ubuntu/ hardy-backports main multiverse restricted universe 
deb http://ubuntu.dormforce.net/ubuntu/ hardy-proposed main multiverse restricted universe 
deb http://ubuntu.dormforce.net/ubuntu/ hardy-security main multiverse restricted universe 
deb http://ubuntu.dormforce.net/ubuntu/ hardy-updates main multiverse restricted universe 
deb-src http://ubuntu.dormforce.net/ubuntu/ hardy main multiverse restricted universe 
deb-src http://ubuntu.dormforce.net/ubuntu/ hardy-backports main multiverse restricted universe 
deb-src http://ubuntu.dormforce.net/ubuntu/ hardy-proposed main multiverse restricted universe 
deb-src http://ubuntu.dormforce.net/ubuntu/ hardy-security main multiverse restricted universe 
deb-src http://ubuntu.dormforce.net/ubuntu/ hardy-updates main multiverse restricted universe

上海市上海交通大學更新服務器（教育網，推薦校園網和網通用戶使用）：

deb http://ftp.sjtu.edu.cn/ubuntu/ hardy main multiverse restricted universe 
deb http://ftp.sjtu.edu.cn/ubuntu/ hardy-backports main multiverse restricted universe 
deb http://ftp.sjtu.edu.cn/ubuntu/ hardy-proposed main multiverse restricted universe 
deb http://ftp.sjtu.edu.cn/ubuntu/ hardy-security main multiverse restricted universe 
deb http://ftp.sjtu.edu.cn/ubuntu/ hardy-updates main multiverse restricted universe 
deb-src http://ftp.sjtu.edu.cn/ubuntu/ hardy main multiverse restricted universe 
deb-src http://ftp.sjtu.edu.cn/ubuntu/ hardy-backports main multiverse restricted universe 
deb-src http://ftp.sjtu.edu.cn/ubuntu/ hardy-proposed main multiverse restricted universe 
deb-src http://ftp.sjtu.edu.cn/ubuntu/ hardy-security main multiverse restricted universe 
deb-src http://ftp.sjtu.edu.cn/ubuntu/ hardy-updates main multiverse restricted universe

中國科學技術大學更新服務器（教育網，推薦校園網和網通用戶使用）：

deb http://debian.ustc.edu.cn/ubuntu/ hardy main multiverse restricted universe 
deb http://debian.ustc.edu.cn/ubuntu/ hardy-backports main multiverse restricted universe 
deb http://debian.ustc.edu.cn/ubuntu/ hardy-proposed main multiverse restricted universe 
deb http://debian.ustc.edu.cn/ubuntu/ hardy-security main multiverse restricted universe 
deb http://debian.ustc.edu.cn/ubuntu/ hardy-updates main multiverse restricted universe 
deb-src http://debian.ustc.edu.cn/ubuntu/ hardy main multiverse restricted universe 
deb-src http://debian.ustc.edu.cn/ubuntu/ hardy-backports main multiverse restricted universe 
deb-src http://debian.ustc.edu.cn/ubuntu/ hardy-proposed main multiverse restricted universe 
deb-src http://debian.ustc.edu.cn/ubuntu/ hardy-security main multiverse restricted universe 
deb-src http://debian.ustc.edu.cn/ubuntu/ hardy-updates main multiverse restricted universe

中國臺灣 臺灣大學更新服務器（推薦網通用戶使用，電信PING平均響應速度41MS。強烈推薦此源，比較完整，較少出現同步問題）：

deb http://ubuntu.csie.ntu.edu.tw/ubuntu/ hardy main restricted universe multiverse 
deb-src http://ubuntu.csie.ntu.edu.tw/ubuntu/ hardy main restricted universe multiverse 
deb http://ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-updates main restricted universe multiverse 
deb-src http://ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-updates main restricted universe multiverse 
deb http://ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-backports main restricted universe multiverse 
deb-src http://ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-backports main restricted universe multiverse 
deb http://ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-security main restricted universe multiverse 
deb-src http://ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-security main restricted universe multiverse 
deb http://ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-proposed main multiverse restricted universe 
deb-src http://ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-proposed main restricted universe multiverse

mirror.rootguide.org更新服務器（上海市 電信）：

deb http://mirror.rootguide.org/ubuntu/ hardy main restricted universe multiverse 
deb-src http://mirror.rootguide.org/ubuntu/ hardy main restricted universe multiverse 
deb http://mirror.rootguide.org/ubuntu/ hardy-updates main restricted universe multiverse 
deb-src http://mirror.rootguide.org/ubuntu/ hardy-updates main restricted universe multiverse 
deb http://mirror.rootguide.org/ubuntu/ hardy-backports main restricted universe multiverse 
deb-src http://mirror.rootguide.org/ubuntu/ hardy-backports main restricted universe multiverse 
deb http://mirror.rootguide.org/ubuntu/ hardy-security main restricted universe multiverse 
deb-src http://mirror.rootguide.org/ubuntu/ hardy-security main restricted universe multiverse 
deb http://mirror.rootguide.org/ubuntu/ hardy-proposed main multiverse restricted universe 
deb-src http://mirror.rootguide.org/ubuntu/ hardy-proposed main restricted universe multiverse

臺灣的官方源速度也至關不錯，有時甚至快於內地的：

deb http://tw.archive.ubuntu.com/ubuntu hardy main restricted universe multiverse 
deb http://tw.archive.ubuntu.com/ubuntu hardy-security main restricted universe multiverse 
deb http://tw.archive.ubuntu.com/ubuntu hardy-updates main restricted universe multiverse 
deb http://tw.archive.ubuntu.com/ubuntu hardy-backports main restricted universe multiverse 
deb http://tw.archive.ubuntu.com/ubuntu hardy-proposed main restricted universe multiverse 
deb-src http://tw.archive.ubuntu.com/ubuntu hardy main restricted universe multiverse 
deb-src http://tw.archive.ubuntu.com/ubuntu hardy-security main restricted universe multiverse 
deb-src http://tw.archive.ubuntu.com/ubuntu hardy-updates main restricted universe multiverse 
deb-src http://tw.archive.ubuntu.com/ubuntu hardy-backports main restricted universe multiverse 
deb-src http://tw.archive.ubuntu.com/ubuntu hardy-proposed main restricted universe multiverse

添加完源之後注意保存。 最後更新你的軟件列表

sudo apt-get update
sudo apt-get dist-upgrade

這個是爲了更新系統 
注：我的感受163的源仍是挺不錯的，不但軟件資源豐富下載速度也是沒的說，強烈推薦！