Kali科大软件来源：
vim /etc/apt/sources.list
有下面的粘贴。
deb http://mirrors.ustc.edu.cn/kalikalimainnon-free contrib
de B- src http://mirrors.ustc.edu.cn/kalikalimainnon-free contrib
deb http://mirrors.ustc.edu.cn/kali -安全kali/updatesmaincontribnon-free
然后呢
Apt-get更新就可以了。
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CentOS 163软件源：
首先备份/etc/yum.repos.d/centos-base.repo
mv/etc/yum.repos.d/centos-base.repo/etc/yum.repos.d/centos-base.repo.backup
下载相应版本的repo文件，并将其放入/etc/yum.repos.d/。 (操作前请进行适当的备份。 ）
实行
yum clean all
yum makecache
生成缓存
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debian 7163源代码
deb http://mirrors.163.com/debianwheezymainnon-free contrib
deb http://mirrors.163.com/debian wheezy-proposed-updatesmaincontribnon-free
de B- src http://mirrors.163.com/debianwheezymainnon-free contrib
de B- src http://mirrors.163.com/debian wheezy-proposed-updatesmaincontribnon-free
deb http://mirrors.163.com/debian-security wheezy/updatesmaincontribnon-free
de B- src http://mirrors.163.com/debian-security wheezy/updatesmaincontribnon-free
debian 8 163源代码