Deb Http://ubuntu.uestc.edu.cn/ubuntu/precise main restricted universe multiverse
Deb Http://ubuntu.uestc.edu.cn/ubuntu/precise-backports main restricted universe multiverse
Deb http://ubuntu.uestc.edu.cn/ubuntu/precise-proposed main restricted universe multiverse
Deb Http://ubuntu.uestc.edu.cn/ubuntu/precise-security main restricted universe multiverse
Deb Http://ubuntu.uestc.edu.cn/ubuntu/precise-updates main restricted universe multiverse
DEB-SRC http://ubuntu.uestc.edu.cn/ubuntu/precise main restricted universe multiverse
DEB-SRC http://ubuntu.uestc.edu.cn/ubuntu/precise-backports main restricted universe multiverse
DEB-SRC http://ubuntu.uestc.edu.cn/ubuntu/precise-proposed main restricted universe multiverse
DEB-SRC http://ubuntu.uestc.edu.cn/ubuntu/precise-security main restricted universe multiverse
DEB-SRC http://ubuntu.uestc.edu.cn/ubuntu/precise-updates main restricted universe multiverse
# China University of Science and Technology (Education Network user recommended)
Deb Http://debian.ustc.edu.cn/ubuntu/precise main restricted universe multiverse
Deb Http://debian.ustc.edu.cn/ubuntu/precise-backports restricted universe Multiverse
Deb http://debian.ustc.edu.cn/ubuntu/precise-proposed main restricted universe multiverse
Deb Http://debian.ustc.edu.cn/ubuntu/precise-security main restricted universe multiverse
Deb Http://debian.ustc.edu.cn/ubuntu/precise-updates main restricted universe multiverse
DEB-SRC http://debian.ustc.edu.cn/ubuntu/precise main restricted universe multiverse
DEB-SRC http://debian.ustc.edu.cn/ubuntu/precise-backports main restricted universe multiverse
DEB-SRC http://debian.ustc.edu.cn/ubuntu/precise-proposed main restricted universe multiverse
DEB-SRC http://debian.ustc.edu.cn/ubuntu/precise-security main restricted universe multiverse
DEB-SRC http://debian.ustc.edu.cn/ubuntu/precise-updates main restricted universe multiverse
# Beijing Science and Technology (Education Network user recommended)
Deb Http://mirror.bjtu.edu.cn/ubuntu/precise main Multiverse restricted universe
Deb Http://mirror.bjtu.edu.cn/ubuntu/precise-backports main Multiverse restricted universe
Deb http://mirror.bjtu.edu.cn/ubuntu/precise-proposed main Multiverse restricted universe
Deb Http://mirror.bjtu.edu.cn/ubuntu/precise-security main Multiverse restricted universe
Deb Http://mirror.bjtu.edu.cn/ubuntu/precise-updates main Multiverse restricted universe
DEB-SRC http://mirror.bjtu.edu.cn/ubuntu/precise main Multiverse restricted universe
DEB-SRC http://mirror.bjtu.edu.cn/ubuntu/precise-backports main Multiverse restricted universe
DEB-SRC http://mirror.bjtu.edu.cn/ubuntu/precise-proposed main Multiverse restricted universe
DEB-SRC http://mirror.bjtu.edu.cn/ubuntu/precise-security main Multiverse restricted universe
DEB-SRC http://mirror.bjtu.edu.cn/ubuntu/precise-updates main Multiverse restricted universe
# 163 (Non-educational network recommended)
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
# Sohu (non-educational network recommended)
Deb Http://mirrors.sohu.com/ubuntu/precise main restricted
DEB-SRC http://mirrors.sohu.com/ubuntu/precise Main restricted
Deb Http://mirrors.sohu.com/ubuntu/precise-updates main restricted
DEB-SRC http://mirrors.sohu.com/ubuntu/precise-updates Main restricted
Deb Http://mirrors.sohu.com/ubuntu/precise Universe
DEB-SRC Http://mirrors.sohu.com/ubuntu/precise Universe
Deb Http://mirrors.sohu.com/ubuntu/precise-updates Universe
DEB-SRC Http://mirrors.sohu.com/ubuntu/precise-updates Universe
Deb Http://mirrors.sohu.com/ubuntu/precise Multiverse
DEB-SRC Http://mirrors.sohu.com/ubuntu/precise Multiverse
Deb Http://mirrors.sohu.com/ubuntu/precise-updates Multiverse
DEB-SRC Http://mirrors.sohu.com/ubuntu/precise-updates Multiverse
Deb Http://mirrors.sohu.com/ubuntu/precise-backports main restricted universe multiverse
DEB-SRC http://mirrors.sohu.com/ubuntu/precise-backports main restricted universe multiverse
Deb Http://mirrors.sohu.com/ubuntu/precise-security main restricted
DEB-SRC http://mirrors.sohu.com/ubuntu/precise-security Main restricted
Deb Http://mirrors.sohu.com/ubuntu/precise-security Universe
DEB-SRC Http://mirrors.sohu.com/ubuntu/precise-security Universe
Deb Http://mirrors.sohu.com/ubuntu/precise-security Multiverse
DEB-SRC http://mirrors.sohu.com/ubuntu/precise-security Multiverse
Deb Http://extras.ubuntu.com/ubuntu Precise Main
Deb-src Http://extras.ubuntu.com/ubuntu Precise Main
Ubuntu 12.04 Source