How Linux replaces the source of the PIP and the source of the Apt-get __linux

(1) Use pip install to install Python related library, foreign source slower, modified to domestic source (watercress source)

Edit the configuration file, if not, create a new copy:

VI ~/.pip/pip.conf  

Add content as follows:

[Global]  
Index-url = http://pypi.douban.com/simple  
trusted-host = pypi.douban.com  

(2) Modify Apt-get Source (reference: Apt-get switch domestic source)

Enter the following command:

sudo cp/etc/apt/sources.list/etc/apt/sources.list.backup
sudo vi/etc/apt/sources.list

Then change the source address in the file to the address of the domestic source. (Source list-Ubuntu Chinese)
Trusty (14.04) version address list:

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
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

You can then enter the following command to test the update download speed

sudo apt-get update