源地址：
deb http://mirrors.aliyun.com/kali kali main non-free contrib
deb-src http://mirrors.aliyun.com/kali kali main non-free contrib
deb http://mirrors.aliyun.com/kali-security kali/updates main contrib non-free
修改文件，把以上三行地址保存到文件，把原来的注释掉：
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# vim /etc/apt/sources.list |
更新源：
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# apt-get update & apt-get upgrade # apt-get dist-upgrade # apt-get clean |