Operating the firewall under CENTOS7

Introduction

　　Recently used CENTOS7 system more frequently, in the configuration of the server, always encounter can ping the server, but there is no way to access port 80, this time my intuition tells me, it must be the reason of the firewall, but the use of iptables but how can not find the command, after checking the data to find , centos7 default firewall is firewall, so firewall some common commands to record down, one is to deepen the impression, and secondly convenient query.

Firewall related commands

#启动firewall/bin/systemctl Stop Firewalld.service
#关闭firewall/bin/systemctl Stop Firewalld.service
#开机启动firewall/bin/systemctl able Firewalld.service
#禁止firewall开机启动/bin/systemctl Disable Firewalld.service

#查看firewall状态
/bin/systemctl Status Firewalld.service

Operating the firewall under CENTOS7