当前选择的计算单元系统是debian jessie

sudo nano /etc/apt/sources.list #替换所有jessie 为 testing ,保存修改。

#更新到testing版本
sudo apt-get update
sudo apt-get -u -o APT::Force-LoopBreak=1 dist-upgrade
sudo apt-get autoremove

#开启BBR
sudo sh -c ‘echo “net.core.default_qdisc=fq” >> /etc/sysctl.conf’
sudo sh -c ‘echo “net.ipv4.tcp_congestion_control=bbr” >> /etc/sysctl.conf’
sudo sysctl -p

#验证
sudo sysctl net.ipv4.tcp_available_congestion_control
sudo sysctl net.ipv4.tcp_congestion_control

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