regarding AWS instance

[ilovecentos]

hello gentlemen,
I have an issue regarding my AWS Instance. I have installed Centos 6.5 on my instance. I can ping my instance public address,but i cant connect trough browser. example, when I put my Instance public address at browser it will not show running apache. I already install it. is it my httpd.conf is wrongly configured? help me

[gerald_clark]

Run system-config-firewall and open the http port.
Also, 6.5 is years old, unsupported and riddled with exploits.
Run "yum update" immediately to get it updated to 6.7.

[ilovecentos]

Still dont get it. I manage update my instance to centos 6.7 (final).
After manage to update my firewall by enable port 80(http) along with 443 (https) and also my ssh port (22), its still dont connected to my browser.

[gerald_clark]

Are you sure it is running?
chkconfig httpd on
service httpd start