KVM环境
安装：
wget --no-check-certificate https://github.com/teddysun/across/raw/master/bbr.sh chmod +x bbr.sh ./bbr.sh
验证：
uname -r
sysctl net.ipv4.tcp_available_congestion_control
sysctl net.ipv4.tcp_congestion_control
sysctl net.core.default_qdisc
lsmod | grep bbr
OpenVZ环境
安装：
wget https://raw.githubusercontent.com/kuoruan/shell-scripts/master/ovz-bbr/ovz-bbr-installer.sh chmod +x ovz-bbr-installer.sh ./ovz-bbr-installer.sh
firewalld：
systemctl disable firewalld
systemctl stop firewalld
卸载：
./ovz-bbr-installer.sh uninstall
多端口：
vim /usr/local/haproxy-lkl/etc/port-rules
启动、停止、重启：
systemctl {start|stop|restart} haproxy-lkl
service haproxy-lkl {start|stop|restart}
更新 glibc：
wget http://ftp.redsleeve.org/pub/steam/glibc-2.15-60.el6.x86_64.rpm http://ftp.redsleeve.org/pub/steam/glibc-common-2.15-60.el6.x86_64.rpm http://ftp.redsleeve.org/pub/steam/glibc-devel-2.15-60.el6.x86_64.rpm http://ftp.redsleeve.org/pub/steam/glibc-headers-2.15-60.el6.x86_64.rpm http://ftp.redsleeve.org/pub/steam/nscd-2.15-60.el6.x86_64.rpm rpm -Uvh glibc-2.15-60.el6.x86_64.rpm glibc-common-2.15-60.el6.x86_64.rpm glibc-devel-2.15-60.el6.x86_64.rpm glibc-headers-2.15-60.el6.x86_64.rpm nscd-2.15-60.el6.x86_64.rpm
手动编译：
wget http://ftp.gnu.org/gnu/glibc/glibc-2.15.tar.gz wget http://ftp.gnu.org/gnu/glibc/glibc-ports-2.15.tar.gz tar -zxf glibc-2.15.tar.gz tar -zxf glibc-ports-2.15.tar.gz mv glibc-ports-2.15 glibc-2.15/ports mkdir glibc-build-2.15 cd glibc-build-2.15 ../glibc-2.15/configure --prefix=/usr --disable-profile --enable-add-ons --with-headers=/usr/include --with-binutils=/usr/bin make all && make install
检查 glibc：
ldd --version
引用：https://www.bandwagonhost.net/bandwagonhost-bbr.html
引用：https://xiaozhou.net/enable-bbr-for-vps-2017-06-10.html