Linux 装机必备 更新中

更换APT源

Debian 12.0

所有命令复制粘贴一起执行

替换官方源

cat > /etc/apt/sources.list << EOF
deb https://deb.debian.org/debian/ bookworm main contrib non-free non-free-firmware
deb-src https://deb.debian.org/debian/ bookworm main contrib non-free non-free-firmware

deb https://deb.debian.org/debian/ bookworm-updates main contrib non-free non-free-firmware
deb-src https://deb.debian.org/debian/ bookworm-updates main contrib non-free non-free-firmware

deb https://deb.debian.org/debian/ bookworm-backports main contrib non-free non-free-firmware
deb-src https://deb.debian.org/debian/ bookworm-backports main contrib non-free non-free-firmware

deb https://deb.debian.org/debian-security/ bookworm-security main contrib non-free non-free-firmware
deb-src https://deb.debian.org/debian-security/ bookworm-security main contrib non-free non-free-firmware
EOF

替换清华源

cat > /etc/apt/sources.list << EOF
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm main contrib non-free non-free-firmware
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm main contrib non-free non-free-firmware

deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware

deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware

deb https://mirrors.tuna.tsinghua.edu.cn/debian-security/ bookworm-security main contrib non-free non-free-firmware
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian-security/ bookworm-security main contrib non-free non-free-firmware
EOF

替换中科大源

cat > /etc/apt/sources.list << EOF
deb https://mirrors.ustc.edu.cn/debian/ bookworm main contrib non-free non-free-firmware
deb-src https://mirrors.ustc.edu.cn/debian/ bookworm main contrib non-free non-free-firmware

deb https://mirrors.ustc.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware
deb-src https://mirrors.ustc.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware

deb https://mirrors.ustc.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware
deb-src https://mirrors.ustc.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware

deb https://mirrors.ustc.edu.cn/debian-security/ bookworm-security main contrib non-free non-free-firmware
deb-src https://mirrors.ustc.edu.cn/debian-security/ bookworm-security main contrib non-free non-free-firmware
EOF

替换腾讯云源

cat > /etc/apt/sources.list << EOF
deb https://mirrors.cloud.tencent.com/debian/ bookworm main contrib non-free non-free-firmware
deb-src https://mirrors.cloud.tencent.com/debian/ bookworm main contrib non-free non-free-firmware

deb https://mirrors.cloud.tencent.com/debian/ bookworm-updates main contrib non-free non-free-firmware
deb-src https://mirrors.cloud.tencent.com/debian/ bookworm-updates main contrib non-free non-free-firmware

deb https://mirrors.cloud.tencent.com/debian/ bookworm-backports main contrib non-free non-free-firmware
deb-src https://mirrors.cloud.tencent.com/debian/ bookworm-backports main contrib non-free non-free-firmware

deb https://mirrors.cloud.tencent.com/debian-security/ bookworm-security main contrib non-free non-free-firmware
deb-src https://mirrors.cloud.tencent.com/debian-security/ bookworm-security main contrib non-free non-free-firmware
EOF

使用腾讯云服务器时，可以选择腾讯云内网源，走内网不消耗公网流量。

替换阿里云源

cat > /etc/apt/sources.list << EOF
deb https://mirrors.aliyun.com/debian/ bookworm main contrib non-free non-free-firmware
deb-src https://mirrors.aliyun.com/debian/ bookworm main contrib non-free non-free-firmware

deb https://mirrors.aliyun.com/debian/ bookworm-updates main contrib non-free non-free-firmware
deb-src https://mirrors.aliyun.com/debian/ bookworm-updates main contrib non-free non-free-firmware

deb https://mirrors.aliyun.com/debian/ bookworm-backports main contrib non-free non-free-firmware
deb-src https://mirrors.aliyun.com/debian/ bookworm-backports main contrib non-free non-free-firmware

deb https://mirrors.aliyun.com/debian-security/ bookworm-security main contrib non-free non-free-firmware
deb-src https://mirrors.aliyun.com/debian-security/ bookworm-security main contrib non-free non-free-firmware
EOF

使用阿里云服务器时，可以选择腾讯云内网源，走内网不消耗公网流量。

替换为Linode源

cat > /etc/apt/sources.list << EOF
deb http://mirrors.linode.com/debian/ bookworm main contrib non-free non-free-firmware
deb-src http://mirrors.linode.com/debian/ bookworm main contrib non-free non-free-firmware

deb http://mirrors.linode.com/debian/ bookworm-updates main contrib non-free non-free-firmware
deb-src http://mirrors.linode.com/debian/ bookworm-updates main contrib non-free non-free-firmware

deb http://mirrors.linode.com/debian/ bookworm-backports main contrib non-free non-free-firmware
deb-src http://mirrors.linode.com/debian/ bookworm-backports main contrib non-free non-free-firmware

deb http://mirrors.linode.com/debian-security/ bookworm-security main contrib non-free non-free-firmware
deb-src http://mirrors.linode.com/debian-security/ bookworm-security main contrib non-free non-free-firmware
EOF

更换完成源以后，执行命令更新apt索引

apt update

开启BBR

Debian 12开启BBR

BBR 主要是针对 TCP 流量进行优化，设计目的是提升整体网络性能，包括延迟和带宽质量。

1. 首先把系统更新到最新版本

sudo apt update
sudo apt upgrade -y

2. 安装Vim

sudo apt install vim -y

3. 打开sysctl配置文件

sudo vim /etc/sysctl.conf

4. 编辑内容添加两行内容

net.core.default_qdisc = fq 
net.ipv4.tcp_congestion_control = bbr

5. 保存好文件以后，使配置生效

sudo sysctl -p

6. 最后查询是否配置成功（返回包含BBR即可）

sysctl net.ipv4.tcp_congestion_control