Distributed memcached on 2 Webserver [CentOS7] Install memcached yum install memcached libmemcached -y vi /etc/sysconfig/memcached Change options to listen to the private IP on both web's: OPTIONS="-l 10.1.1.X -U 0" Restart memcached systemctl restart memcached systemctl enable memcached Edit php ini vi /etc/php.ini session.save_handler = memcache session.save_path = "tcp://10.1.1.100:11211, tcp://10.1.1.101:11211" Install php-pecl-memcache yum -y install php-pecl-memcache echo "extension=memcache.so" >> /etc/php.d/memcache.ini systemctl restart httpd Allow in FW firewall-cmd --zone=public --permanent --add-port=11211/tcp firewall-cmd --reload Check if memcached is running watch memcached-tool X.X.X.X stats Create test page: vim /home/www/domain.com/session.php Test Page: