1. after installation debian,
The sourcelist for apt-get should be edited.
2. the recommmended source is aliyun mirrors. reference help can be found in debian page.
3. apt-spy can be used to test speed of apt source.
4. when apt is done, the man page should be updated to generate a mandb for man reference.
/*
#deb.163.com 2015/12/25
deb http://mirrors.163.com/debian/ jessie main non-free contrib
deb http://mirrors.163.com/debian/ jessie-updates main non-free contrib
deb http://mirrors.163.com/debian/ jessie-backports main non-free contrib
deb-src http://mirrors.163.com/debian/ jessie main non-free contrib
deb-src http://mirrors.163.com/debian/ jessie-updates main non-free contrib
deb-src http://mirrors.163.com/debian/ jessie-backports main non-free contrib
deb http://mirrors.163.com/debian-security/ jessie/updates main non-free contrib
deb-src http://mirrors.163.com/debian-security/ jessie/updates main non-free contrib
# zju.edu.cn
deb http://mirrors.zju.edu.cn/debian jessie main non-free contrib
deb http://mirrors.zju.edu.cn/debian jessie-updates main non-free contrib
deb http://mirrors.zju.edu.cn/debian-security jessie/updates main non-free contrib
# aliyun.com
deb http://mirrors.aliyun.com/debian/ jessie main non-free contrib
deb http://mirrors.aliyun.com/debian/ jessie-proposed-updates main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ jessie main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ jessie-proposed-updates main non-free contrib
*/
原文：http://www.cnblogs.com/freeAk47/p/4993310.html