本地测试回程：

bash <(curl -sL mcnb.top/besttrace.sh)
bash <(curl -sL mcnb.top/besttcp.sh)

高延迟线路优化：

wget -O net_speeder.sh --no-check-certificate https://soft.mengclaw.com/Bash/net_speeder.sh && bash net_speeder.sh
运行：bash net_speeder.sh

报错安装 apt-get install -y net-tools 端口被扫检查 lastb

grep "Failed password for root" /var/log/auth.log | awk '{print $11}' | sort | uniq -c | sort -nr | more