Install EPEL Repo

Memcache can be found in the EPEL repo. Install EPEL repo:

rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm
Install Memcache

yum install memcached
pecl install memcache
yum install zlib-devel
Auto start memcache on reboot

chkconfig --level 2345 memcached on

Add PHP settings for Memcache

nano /etc/php.d/memcache.ini

extension=memcache.so
memcache.hash_strategy="consistent"

read more