查看添加更新源
编辑sources.list, 将kali更新源加入其中
sudo vim /etc/apt/sources.list
#阿里云
deb http://mirrors.aliyun.com/kali kali-rolling main non-free contrib
deb-src http://mirrors.aliyun.com/kali kali-rolling main non-free contrib
#清华大学
deb http://mirrors.tuna.tsinghua.edu.cn/kali kali-rolling main contrib non-free
deb-src https://mirrors.tuna.tsinghua.edu.cn/kali kali-rolling main contrib non-free
#浙江大学
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
注：由于kali官方源较慢非常卡，所以可以换成国内更新源，并且国内更新源也不宜添加过多！
#更新
apt-get clean && apt-get update && apt-get upgrade -y && apt-get dist-upgrade -y
#命令讲解：
apt-get clean //清除缓存索引
apt-get update //更新索引文件
apt-get upgrade //更新实际的软件包文件
apt-get dist-upgrade //根据依赖关系更新
