Archive.Ubuntu.com更新服务器（欧洲，此为官方源，电信网通用户使用)：

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

Ubuntu.cn99.com更新服务器（江苏省常州市电信，推荐电信用户使用）：

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

Mirrors.shlug.org更新服务器（电信服务器，Ubuntu China Official Mirror, maintained by Shanghai Linux User Group）：

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

Mirror.lupaworld.com更新服务器（浙江省杭州市双线服务器）：

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

厦门大学更新服务器（教育网服务器）：

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

成都市 电子科技大学更新服务器（教育网，推荐校园网和网通用户使用）：

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

== 如果无法解析uestc.edu.cn域名，请使用以下地址 ==

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

上海市上海交通大学更新服务器（教育网，推荐校园网和网通用户使用）：

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

中国科学技术大学更新服务器（教育网，推荐校园网和网通用户使用）：

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

中国台湾 台湾大学更新服务器（推荐网通用户使用，电信PING平均响应速度41MS。强烈推荐此源，比较完整，较少出现同步问题）：

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

mirror.rootguide.org更新服务器（上海市 电信）：

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

台湾的官方源速度也相当不错，有时甚至快于内地的：

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