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There are two ways to check the firewall in Linux:
1. Service method
Check the firewall status:
[root@centos6 ~]# service iptables status iptables:未运行防火墙。
Turn on the firewall:
[root@centos6 ~]# service iptables start
Turn off the firewall:
[root@centos6 ~]# service iptables stop
2. iptables method
Enter init first. d directory, the command is as follows:
[root@centos6 ~]# cd /etc/init.d/ [root@centos6 init.d]#
Check the firewall status:
[root@centos6 init.d]# /etc/init.d/iptables status
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