关闭firewalld
[root@centos ~]# systemctl stop firewalld
[root@centos ~]# systemctl disable firewalld
[root@centos ~]# systemctl status firewalld
2.开启iptables
首先安装iptables:
[root@centos ~]#yum install -y iptables-services
[root@centos ~]# systemctl enable iptables
ln -s '/usr/lib/systemd/system/iptables.service' '/etc/systemd/system/basic.target.wants/iptables.service'
[root@centos ~]# systemctl start iptables
[root@centos ~]# systemctl status iptables
此时iptables的命令都可以使用了:
[root@centos ~]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
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