Ubuntu国内ソースの交換

sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak # 
sudo vim /etc/apt/sources.list # 

アリ雲源

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

yun-idc(このソースはRSYNC可能)

deb http://mirrors.yun-idc.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.yun-idc.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.yun-idc.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.yun-idc.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.yun-idc.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.yun-idc.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.yun-idc.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.yun-idc.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.yun-idc.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.yun-idc.com/ubuntu/ trusty-backports main restricted universe multiverse

更新

sudo apt-get update # 

テンプレートはすべて同じで、ドメイン名だけを修正すればいいです