使用阿里云软件源（Ubuntu、CentOS各个版本）

CentOS系列

1. 备份

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

2. 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
或者
curl -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
或者
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

CentOS 7
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
或者
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

3. 生成缓存

yum makecache

Ubuntu系列

1. 备份

cp /etc/apt/sources.list /etc/apt/sources.list.bak

2. 修改内容

vim /etc/apt/sources.list
Ubuntu 14.04.5 LTS，文件内容为：

deb https://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiversedeb-src https://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiversedeb https://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiversedeb-src https://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiversedeb https://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiversedeb-src https://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiversedeb https://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiversedeb-src https://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse## Not recommended# deb https://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse# deb-src https://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse

ubuntu 16.04 配置如下

deb http://mirrors.aliyun.com/ubuntu/ xenial maindeb-src http://mirrors.aliyun.com/ubuntu/ xenial maindeb http://mirrors.aliyun.com/ubuntu/ xenial-updates maindeb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates maindeb http://mirrors.aliyun.com/ubuntu/ xenial universedeb-src http://mirrors.aliyun.com/ubuntu/ xenial universedeb http://mirrors.aliyun.com/ubuntu/ xenial-updates universedeb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates universedeb http://mirrors.aliyun.com/ubuntu/ xenial-security maindeb-src http://mirrors.aliyun.com/ubuntu/ xenial-security maindeb http://mirrors.aliyun.com/ubuntu/ xenial-security universedeb-src http://mirrors.aliyun.com/ubuntu/ xenial-security universe

ubuntu 18.04(bionic) 配置如下

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

3. 更新缓存

apt-get udpate