关闭 linux rngd服务

yum install rng-tools 安装rngd服务
systemctl start rngd 启动服务
cp /usr/lib/systemd/system/rngd.service /etc/systemd/system

编辑 /etc/systemd/system/rngd.service service
ExecStart=/sbin/rngd -f -r /dev/urandom

systemctl daemon-reload 重新载入服务

systemctl restart rngd 重启服务

systrem stop rngd  关闭服务