一、查看kali系统的更新源地址文件
命令：
vim /etc/apt/sources.list
上面这是kali官方的更新源；顺便再拓展一下知识，图中的kali-rolling是kali目前最新的代号，kali有两个代号(codename)：sana和kali-rolling；
问：如何查看自己的kali linux版本?
答：用命令“lsb_release -a”即可！
注意： (linux standard base linux标准库)，以下的更新源均为rolling版本。
二、增加或替换掉sources.list文件里面的更新源地址：
#
#deb cdrom:[Debian GNU/Linux 7.0 Kali - Official Snapshot amd64 LIVE/INSTALL Binary 20150312-17:50]/ kali contrib main non-free
#deb cdrom:[Debian GNU/Linux 7.0 Kali - Official Snapshot amd64 LIVE/INSTALL Binary 20150312-17:50]/ kali contrib main non-free
deb http://http.kali.org/kali moto main non-free contrib
deb-src http://http.kali.org/kali moto main non-free contrib
deb http://security.kali.org/ moto/updates main contrib non-free
deb-src http://security.kali.org/ moto/updates main contrib non-free
#中科大kali源
deb http://mirrors.ustc.edu.cn/kali kali main non-free contrib
deb-src http://mirrors.ustc.edu.cn/kali kali main non-free contrib
deb http://mirrors.ustc.edu.cn/kali-security kali/updates main contrib non-free
#新加坡kali源
deb http://mirror.nus.edu.sg/kali/kali/ kali main non-free contrib
deb-src http://mirror.nus.edu.sg/kali/kali/ kali main non-free contrib
deb http://security.kali.org/kali-security kali/updates main contrib non-free
deb http://mirror.nus.edu.sg/kali/kali-security kali/updates main contrib non-free
deb-src http://mirror.nus.edu.sg/kali/kali-security kali/updates main contrib non-free
#阿里云kali源
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
#163 Kali源
deb http://mirrors.163.com/debian wheezy main non-free contrib
deb-src http://mirrors.163.com/debian wheezy main non-free contrib
deb http://mirrors.163.com/debian wheezy-proposed-updates main non-free contrib
deb-src http://mirrors.163.com/debian wheezy-proposed-updates main non-free contrib
deb-src http://mirrors.163.com/debian-security wheezy/updates main non-free contrib
deb http://mirrors.163.com/debian-security wheezy/updates main non-free contrib
#auto
deb http://http.kali.org/kali kali-rolling main non-free contrib
#中科大
deb http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib
deb-src http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib
#浙大
deb http://mirrors.zju.edu.cn/kali kali-rolling main contrib non-free
deb-src http://mirrors.zju.edu.cn/kali kali-rolling main contrib non-free
#东软大学
deb http://mirrors.neusoft.edu.cn/kali kali-rolling/main non-free contrib
deb-src http://mirrors.neusoft.edu.cn/kali kali-rolling/main non-free contrib
#重庆大学
deb http://http.kali.org/kali kali-rolling main non-free contrib
deb-src http://http.kali.org/kali kali-rolling main non-free contrib
#官方源
#deb http://http.kali.org/kali kali-rolling main non-free contrib
#deb-src http://http.kali.org/kali kali-rolling main non-free contrib
我是直接把上面的更新源地址直接加入到sources.list，官方源我也是没有做任何的修改。毕竟源地址多了并没有什么坏处，唯一是在我们更新的时候下载时间或许会久一点，仅此而已。
三、开始更新源；
命令：
apt-get update & apt-get upgrade
四、更新完成后再输入；
命令：
apt-get dist-upgrade
五、清理；
命令：
apt-get clean
六、重启系统；
命令：
reboot
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