1. Service mode
Check the firewall status:
[root@centos6 ~]# service iptables status iptables：未运行防火墙。
Recommended tutorial: linux tutorial
2. iptables method
First enter the init.d directory, the command is as follows:
[root@centos6 ~]# cd /etc/init.d/ [root@centos6 init.d]#
Then check the firewall status:
[root@centos6 init.d]# /etc/init.d/iptables status
Recommended related video tutorials: linux video tutorial
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