linux源

/etc/apt/sources.list

deb http://cn.archive.ubuntu.com/ubuntu/precise main restricted universe multiverse

deb http://cn.archive.ubuntu.com/ubuntu/precise-security main restricted universe multiverse

deb http://cn.archive.ubuntu.com/ubuntu/precise-updates main restricted universe multiverse

deb http://cn.archive.ubuntu.com/ubuntu/precise-backports main restricted universe multiverse##测试版源

deb http://cn.archive.ubuntu.com/ubuntu/precise-proposed main restricted universe multiverse

# 源码

deb-src http://cn.archive.ubuntu.com/ubuntu/precise main restricted universe multiverse

deb-src http://cn.archive.ubuntu.com/ubuntu/precise-security main restricted universe multiverse

deb-src http://cn.archive.ubuntu.com/ubuntu/precise-updates main restricted universe multiverse

deb-src http://cn.archive.ubuntu.com/ubuntu/precise-backports main restricted universe multiverse##测试版源

deb-src http://cn.archive.ubuntu.com/ubuntu/precise-proposed main restricted universe multiverse

# Canonical 合作伙伴和附加

deb http://archive.canonical.com/ubuntu/precise partner

deb http://extras.ubuntu.com/ubuntu/precise main

yum源

第一步：下载新的CentOS-Base.repo 到/etc/yum.repos.d/

CentOS 5

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo

CentOS 6

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

第二步：运行yum makecache生成缓存

yum clean all

yum makecache