wget -no-check-certificate https://github.com/teddysun/across/raw/master/bbr.sh

chmod +x bbr.sh

./bbr.sh

Info: The system needs to be restart. Do you want to reboot? [y/n] y

uname -r

sysctl net.ipv4.tcp_available_congestion_control

net.ipv4.tcp_available_congestion_control = bbr cubic reno

lsmod | grep bbr

tcp_bbr 20480 7

successfully!