linux firewall operation

1. Instructions for the firewall that comes with centos7 

#stop firewall 

systemctl stop firewalld.service

#Disable firewall startup 

systemctl disable firewalld.service

#View the status of firewall

systemctl status firewalld.service

 

Second, the relevant status of the centos6 iptables firewall 

#Close the firewall ---service iptables stop  

#Start the firewall ---service iptables start  

# Restart firewall—--service iptables restart  

# View firewall status –service iptables status  

# Permanently turn off the firewall –chkconfig iptables off  

# Enable after permanent shutdown --chkconfig iptables on
 

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