调整时区为东八区

cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

安装常用网络工具

yum install epel-release -y
yum update -y
yum install bind-utils screen htop nload mtr traceroute iftop tree supervisor whois -y
wget -P /usr/local/bin/ https://download.kuajinghutong.com/besttrace && chmod 744 /usr/local/bin/besttrace
wget -P /usr/local/bin/ https://raw.githubusercontent.com/sivel/speedtest-cli/master/speedtest.py && chmod 744 /usr/local/bin/speedtest.py
wget -P /usr/local/bin/ https://raw.githubusercontent.com/oooldking/script/master/superspeed.sh && chmod 744 /usr/local/bin/superspeed.sh
wget -P /usr/local/bin/ https://raw.githubusercontent.com/oooldking/script/master/superbench.sh && chmod 744 /usr/local/bin/superbench.sh
wget -P /usr/local/bin/ https://raw.githubusercontent.com/teddysun/across/master/bench.sh && chmod 744 /usr/local/bin/bench.sh

supervisor 管理命令

systemctl enable supervisord
systemctl start supervisord
supervisorctl reload

更换内核,开启 bbr

rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
yum --enablerepo=elrepo-kernel install kernel-ml -y
echo "net.core.default_qdisc = fq
net.ipv4.tcp_congestion_control = bbr" >> /etc/sysctl.conf
grub2-set-default 0
reboot

删除不必要的内核

yum remove kernel kernel-ml -y