更换源
vim /etc/apt/sources.list
实测比较好用的地址
`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
kali官方源
deb http://http.kali.org/ kali-rolling main non-free contrib
deb-src http://http.kali.org/ kali-rolling main non-free contrib
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`
清除更新索引
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
检查更新
apt update
更新
apt upgrade 如果软件包有相依性问题，此软件包就不会被升级
apt dist-upgrade 如果软件包有想依性问题，会移除旧版本，直接安装新版本（有点风险）