sudo -i
echo -e "\nnet.core.default_qdisc=fq\nnet.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf && sysctl -p
sysctl net.ipv4.tcp_congestion_control

#root@MEmini-B20E:~# sysctl net.ipv4.tcp_congestion_control
#net.ipv4.tcp_congestion_control = bbr