# Debian Mirror

# Introduction

Debian (opens new window), also known as Debian GNU/Linux, is a Linux distribution composed of free and open-source software.

# Backup Existing Configuration

mv /etc/apt/sources.list /etc/apt/sources.list.bak

# Edit Configuration File

Write the following settings to /etc/apt/sources.list if you are using Debian "buster". If you are using other version, you can change the version "buster" in the following code to your version name.

deb https://mirrors.sustech.edu.cn/debian/ buster main contrib non-free
# deb-src https://mirrors.sustech.edu.cn/debian/ buster main contrib non-free
deb https://mirrors.sustech.edu.cn/debian/ buster-updates main contrib non-free
# deb-src https://mirrors.sustech.edu.cn/debian/ buster-updates main contrib non-free
deb https://mirrors.sustech.edu.cn/debian/ buster-backports main contrib non-free
# deb-src https://mirrors.sustech.edu.cn/debian/ buster-backports main contrib non-free
deb https://mirrors.sustech.edu.cn/debian-security buster/updates main contrib non-free
# deb-src https://mirrors.sustech.edu.cn/debian-security buster/updates main contrib non-free

# Update Software Source

apt-get update