centos 防火墙关闭
#查看防火墙状态firewall-cmd --state#停止firewallsystemctl stop firewalld.service #禁止firewall开机启动systemctl disable firewalld.service 如果以上设置成功之后,依旧无法 ping 通vi /etc/resolv.conf#修改或添加nameserver 61.139...