Linux firewall configuration is also in effect if you want to reboot

A newly configured server, installed CentOS6.3 system, after the installation of LNMP, the discovery Nginx process exists, and PHP parsing is normal, but with the allocation of independent IP to access the time found to be inaccessible.

Check the information on the Internet, it is possible that the Linux firewall iptables caused nginx can not access. We visit a Web site, typically with 80 ports, then the problem may be that the 80-port access is intercepted. View the/etc/sysconfig/iptables file, found that there is no 80 port configuration rules, need to modify the next iptables.

Execute under Root:

iptables -A INPUT -p tcp --dport 80 -j ACCEPT

Then execute (immediate effect, restart invalidation):

service iptables stop
service iptables start

To take effect after reboot, execute:

chkconfig iptabels on
chkconfig iptabels off