How to install BBR acceleration kernel in Ubuntu image system?

888u

Last update at :2024-01-17,Edit by888u

Some friends feel that the speed is not fast enough after choosing VPS. The main reason lies in the choice of computer room and lines. If we use the same computer room and configuration, can the speed be increased? Our usual method here is to install the Google BBR acceleration tool, and then increase the concurrent traffic of our server, which can increase the data transmission speed. Of course, this method will also cause the traffic to increase slightly. Its purpose is to reduce server line traffic congestion.

Banwagonhost Ubuntu installation BBR tutorial

As can be seen in the picture above, when the bricklayer reinstalls the system, if you select the CENTOS image, you can see that it has the word BBR on the tail, which means it comes with accelerated BBR, and we do not need to install it. If we need to install an image like Debian or Ubuntu, we need to install BBR ourselves.

Log in to Ubuntu or Debian of the VPS host, then enter the script and press Enter. The script will prompt that you need to restart the VPS. Enter y and press Enter to restart.

wget –no-check-certificate https://github.com/teddysun/across/raw/master/bbr.sh && chmod +x bbr.sh && ./bbr.sh

After the restart is complete, enter the VPS to verify whether the latest kernel is successfully installed and TCP BBR is enabled. Enter the following command:

uname -r

Check the kernel version. If it contains 4.13, it means OK.

sysctl net.ipv4.tcp_available_congestion_control

The return value is generally: net.ipv4.tcp_available_congestion_control = bbr cubic reno

sysctl net.ipv4.tcp_congestion_control

The return value is generally: net.ipv4.tcp_congestion_control = bbr

sysctl net.core.default_qdisc

The return value is generally: net.core.default_qdisc = fq

lsmod | grep bbr

If the tcp_bbr module is present in the return value, it means that bbr has been started.

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How to install BBR acceleration kernel in Ubuntu image system?

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