Apache 2.4 on CentOS:

Apache 2.4 on CentOS:

Step 1:

cd /etc/yum.repos.d/
wget http://repos.fedorapeople.org/repos/jkaluza/httpd24/epel-httpd24.repo

Step 2:

yum install httpd24.x86_64

Step 3:

$ /opt/rh/httpd24/root/usr/sbin/httpd -version
Server version: Apache/2.4.6 (Red Hat)
Server built:   Sep 25 2013 05:25:46

NOTE: config files are in: /opt/rh/httpd24/root/etc/httpd

$ ls
conf  conf.d  conf.modules.d  logs  modules  run

EDIT: in case you want to switch off Apache 2.2

$ chkconfig httpd off
$ chkconfig --list | grep httpd
httpd           0:off   1:off   2:off   3:off   4:off   5:off   6:off
httpd24-httpd   0:off   1:off   2:off   3:off   4:off   5:off   6:off

EDIT 2: http://wiki.apache.org/httpd/PHP-FPM

yum install php-fpm
/etc/init.d/php-fpm start

http://unix.stackexchange.com/questions/138899/centos-install-using-yum-apache-2-4