This tutorial covers installing Apache on CentOS along with some basic configuration to get it up and running.
Here we are installing Apache and SSL right away in case we ever need it.
$ yum install httpd mod_ssl
Once that's done turn on the Apache service so that it automatically starts on boot.
$ chkconfig --level 2345 httpd on
Finally we can start the Apache service.
$ /etc/init.d/httpd start
We are going to open up ports 80 and 443 for http and https protocols in iptables.
$ vi /etc/sysconfig/iptables
Add the following lines (make sure its above the reject statement).
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 443 -j ACCEPT
-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited
Restart the iptables service for the changes to take effect.
$ /etc/init.d/iptables restart
This makes sure other computers can connect to the server.
$ vi /etc/sysconfig/selinux
Make sure the SELINUX setting is set to disabled
SELINUX=disabled
May require a system reboot at this point for this one to take effect.