View firewall current status, turn off, etc. under Linux

Shutting down the firewall from the configuration menu is not working, simply do not install the firewall at the time of installation
To view the firewall status:
/etc/init.d/iptables status
To temporarily turn off the firewall:
/etc/init.d/iptables stop
Prevent firewalls from starting at system startup
/sbin/chkconfig--level 2345 iptables off
Restart Iptables:
/etc/init.d/iptables restart
Off Topic:
BT or mule slow not need to shut down the firewall, as long as the corresponding port open on it.
In the file
/etc/sysconfig/iptables
In the system's original configuration: The Rh-firewall-1-input rule chain adds a line like this:
-A rh-firewall-1-input-m state--state new-m tcp-p TCP--dport 39764-j ACCEPT
-A rh-firewall-1-input-m state--state new-m udp-p UDP--dport 39764-j ACCEPT
If you find the original-j reject a class of statements, the above two sentences to put in front of it

Effective after reboot
Open: Chkconfig iptables on
OFF: chkconfig iptables off or/sbin/chkconfig--level 2345 iptables off

2) immediate effect, failure after reboot
Service Mode
Open: Service iptables start
Close: Service iptables stop
Iptables Way
To view the firewall status:
/etc/init.d/iptables status
To temporarily turn off the firewall:
/etc/init.d/iptables stop
Restart Iptables:
/etc/init.d/iptables restart

(Note the environment variables:/sbin/service iptables status (View status.) ) from http://blog.csdn.net/bslzl/article/details/7937899)

View firewall current status, turn off, etc. under Linux