Kali更换源

1. 打开终端，输入下边命令打开更新源的文件

   vim /etc/apt/sources.list

   
2. 按键盘上Insert插入复制的源文件。以下是国内的源文件链接（下载和更新比官方kali速度较快。）

   #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
   #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
   

3. 更新源

   apt-get update

4. 更新软件

   apt-get upgrade

5. 更新系统

   apt-get dist-upgrade

6. 清理安装包

   apt-get clean
   

   apt-get autoclean