Introduction#

The procedure below will guide you on installing and configuring Memcached.

Procedure#

Install and enable Memcached:#

1. Connect to the server via SSH as root or navigate to WHM >> Server Configuration >> Terminal.

2. Run the following command:

yum -y install memcached

3. Enable memcached in systemd by running the following command:

systemctl enable memcached

Create a secure Memcached configuration in systemd:#

By default, Memcached will accept connections from everyone which is frequently exploited in distributed denial of service attacks. To prevent this, follow the steps listed below. If you are unfamiliar with editing a file on the command-line, please see: How to edit a file on command-line

1. Open the /etc/sysconfig/memcached file using any command-line text editor, such as vi, vim, or nano.

Example:

vi /etc/sysconfig/memcached 

2. Find the line that starts with “OPTIONS=” and edit the line to look like this:

OPTIONS="-l 127.0.0.1 -U 0" 

3. Restart Memcached by running the following command:

systemctl restart memcached

4. Confirm Memcached is running by running the following command:

systemctl status memcached

Install Memcached PHP Extensions#

The Memcached PHP extensions can be installed using WHM >> Software >> EasyApache 4. Please see: How to install a PHP extension in WHM

Once the Memcached PHP extensions have been installed, restart Memcached by running the following command:

systemctl restart memcached

More information on installing and configuring Memcached in cPanel can be found here:

cPanel Blog – Memcached PHP Applications for Faster Web Apps