Instructions for installing Memcached on CentOS 7

Memcached is also a way to speed up website processing. In particular, Memcached is often combined with the W3 Total Cache plugin as a way to speed up WordPress websites

When talking about Memcached we usually talk about 2 components:

• Memcached Server: we will install a server that handles how
• Memcached module: module in PHP to communicate with Memcached server​

The memcached model I mentioned in this post

With VPS you have the option of whether you want to use Memcached or not. ShareHost depends on whether the provider has this feature or not?

Today’s article I will guide you to install Memcached on CentOS 7.

Install Memcached server:

First we install the first component of the Memcached system with the following command: ​

The following command to start Memcached: 

To make Memcached run on server restart, use the following command: 

Use the following command to check if memcached is up and running: 

Configure Memcached

The memcached configuration is located in the file /etc/sysconfig/memcached

The cachesize part will be the RAM for Memcached. Default is 64MB. Here I increased to 128MB. 

Restart Memcached to use the new configuration. 

Install the Memcached PHP Module

For Memcached to work with PHP you need to install the Memcached Module

In the series of articles about LEMP on CentOS, I use PHP 7.1, so I will install it with the following command: ​

Restart PHP-FPM: systemctl restart php-fpm

Now go to the W3 Total Cache configuration and select Memcached for Page Cache, Database Cache and Object Cache.