树莓派基础操作

更换 apt 源

• 编辑/etc/apt/sources.list文件，将地址变更为http://mirrors.ustc.edu.cn/raspbian/raspbian/

  deb http://mirrors.ustc.edu.cn/raspbian/raspbian/ buster main contrib non-free rpi
  deb-src http://mirrors.ustc.edu.cn/raspbian/raspbian/ buster main contrib non-free rpi

• 编辑/etc/apt/sources.list.d/raspi.list,将地址变更为http://mirrors.ustc.edu.cn/archive.raspberrypi.org/debian/

  deb http://mirrors.ustc.edu.cn/archive.raspberrypi.org/debian/ buster main
  deb-src http://mirrors.ustc.edu.cn/archive.raspberrypi.org/debian/ buster main

更换 pip 源

• 更换阿里 pip 源

  mkdir ~/.pip
  cat > ~/.pip/pip.conf << EOF
  [global]
  index-url = https://mirrors.aliyun.com/pypi/simple/
  [install]
  trusted-host=mirrors.aliyun.com
  EOF

配置 DNS 缓存

• 安装软件包

  apt install nscd

• 修改配置文件/etc/nscd.conf，关闭不需要的缓存

  nscd 默认缓存 passwd, group, hosts, services, or netgroup 五个