...................................................................................... 5 2.2 关闭防火墙 .................................................................................................. chronyc activity -v 7. vi /etc/hosts ##配置 hosts 解析，根据实际主机 IP 和 hostname 进行更改 2.2 关闭防火墙 用 root 用户在每个节点执行如下命令： 1. iptables -F 2. systemctl status firewalld 3. systemctl stop firewalld