oracle linux 7以下 关闭防火墙
重启后生效:
开启: chkconfig iptables on
关闭: chkconfig iptables off
即时生效,重启后失效:
开启:service iptables start
关闭:service iptables stop

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Linux 7 关闭、禁用防火墙服务
1 查看防火墙状态
[root@lvxinghao ~]# systemctl status firewalld

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2 查看开机是否启动防火墙服务
[root@lvxinghao ~]# systemctl is-enabled firewalld

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3 关闭防火墙
[root@lvxinghao ~]# systemctl stop firewalld
[root@lvxinghao ~]#** systemctl status firewalld**

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4 禁用防火墙(系统启动时不启动防火墙服务)
[root@lvxinghao ~]# systemctl disable firewalld
[root@lvxinghao ~]# systemctl is-enabled firewalld

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