Cant access webserver remotely cent os

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http://serverfault.com – I have recently installed the centos server. I have configured apache and all the mysql packages. I have also one live IP. When I run the webserver with the live IP on the centos webserver itself all looks good. But when I try to access remotely via another IP, it says "unable to connect". I have also set up iptables. yet i am not able to access the server - please, can any one help? This is my iptable file: # Generated by iptables-save v1.4.7 on Sat Mar 16 21:12:18 2013 *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [20928:2320365] -A INPUT -m state --state RELATED,EST (HowTos)