Debian-based

tips

# 输出文本
sh -c 'printf "abcdefg" > xxx.txt'
# apt指定分支
apt-get -t jessie-backports install [package-name]

congestion control

#!/bin/bash
# Set hybla

# modprobe tcp_hybla
# sysctl net.ipv4.tcp_available_congestion_control
# sysctl net.ipv4.tcp_congestion_control

cd /etc/modules-load.d
cp modules.conf bbr.conf
echo "tcp_bbr\n" >> bbr.conf

echo \
"net.core.default_qdisc=fq\nnet.ipv4.tcp_congestion_control = bbr\n"\
> /etc/sysctl.d/99-bbr.conf

# reboot