1, turn off the firewall and other services in the previous version of the command is
service iptables stop
/etc/init.d/iptables stop
2, RHEL7 start using systemctl tools to manage service program, including the service and chkconfig
systemctl list-unit-files|grep enabled
Check firewall status.
systemctl status firewalld
Temporarily turn off the firewall command. After rebooting the computer, automatic firewall up.
systemctl stop firewalld
Permanently turn off the firewall command. After the restart, the firewall will not start automatically.
systemctl disable firewalld
Open firewall command.
systemctl enable firewalld