002-linux Firewall-related command operations

Different version numbers between versions of Linux or the same version there are also differences about firewall commands. Organize these commands as follows to make it easy for you or your friends to check.

CentOS 6.5 shutdown Firewall step shutdown command: Service iptables stop permanently shut down firewall: chkconfig iptables off two commands run simultaneously, view firewall off after running Closed status service iptables status

centos7.0 Default firewall is FIREWALLD (to test, close default firewall, use Iptables firewall)

Systemctl Stop Firewalld.service #停止firewall

Systemctl Disable Firewalld.service #禁止firewall开机启动

To view the default firewall status:

Firewall-cmd--state

Not running

002-linux Firewall-related command operations