Debian系统初始化

请您在正式使用前运行如下命令，请严格按照顺序执行（只针对国内机器，国外机器请选择性执行），一定要开启bbr：

debian 10、11系统正常:

debian12运行命令sudo apt install gnupg会有依赖的问题，请自行解决，这里不进行赘述。

1、更改DNS为8.8.8.8 114.114.114.114

在resolv.conf文件中更新DNS

vi /etc/resolv.conf

nameserver 8.8.8.8

nameserver 114.114.114.114

重启网络

sudo systemctl restart networking

2、更换为阿里云源

sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

vi /etc/apt/sources.list

将里面的全部内容替换为下方内容：

deb http://mirrors.aliyun.com/debian/ bullseye main non-free contrib

deb-src http://mirrors.aliyun.com/debian/ bullseye main non-free contrib

deb http://mirrors.aliyun.com/debian-security bullseye-security main

deb-src http://mirrors.aliyun.com/debian-security bullseye-security main

deb http://mirrors.aliyun.com/debian/ bullseye-updates main non-free contrib

deb-src http://mirrors.aliyun.com/debian/ bullseye-updates main non-free contrib

同步软件源

sudo apt-get update

3、更新系统包、软件安装确认

sudo apt update

sudo apt install gnupg

reboot

4、开启bbr

echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf

echo "net.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf

sysctl -p

sysctl net.ipv4.tcp_available_congestion_control

lsmod | grep bbr

重启

reboot