iptables firewall configuration

Linux Configuration Firewall Operation instance (Kai, stop, open, closed port) iptables storage location/etc/sysconfig/iptables query iptable details: [Root@localhost ~]# Iptables-l-n-v Query Firewall status: [root@localhost ~]# service iptables status Stop firewall: [root@localhost ~]# service iptables stop startup Firewall: [root@localhost ~]# service iptables start reboot firewall: [root@localhost ~]# service iptables Restart permanently shutdown firewall: [Root@localho St ~]# Chkconfig iptables off after permanent shutdown: [root@localhost ~]# chkconfig on config instance

1, view iptable status

3, edit/etc/sysconfig/iptables file through vim, copy one line
4, keep iptables files and perform [root@localhost ~]# service iptables Restart < return >
5, check the iptable state, whether the port open successfully;