记录一下，方便下次找。命令是真的记不住。。。

1.导入密钥

gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 7D8D0BF6

2.添加

sudo gpg --armor --export 7D8D0BF6| sudo apt-key add -

3.换源

sudo vim /etc/apt/sources.list

4.源地址

# 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

#根据需要自己选一个，中科大的还可以

#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

#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
#自行决定用哪个，去掉#就可以了

1. 更新列表

   sudo apt update