In this article, we will have explained the necessary steps to install and configure Memcached on Ubuntu 20.04 LTS. Before continuing with this tutorial, make sure you are logged in as a user with sudo privileges. All the commands in this tutorial should be run as a non-root user.
Memcached is a free and open source in-memory caching system that speeds up web applications by caching large volumes of data in memory that are generated from page load requests or API calls. Memcached is particularly useful in speeding up PHP-based web applications such as WordPress, Joomla, Drupal, and many more.
Install Memcached on Ubuntu 20.04
Step 1. First, before you start installing any package on your Ubuntu server, we always recommend making sure that all system packages are updated.
Step 2. Install Memcached.
Memcached is available on official Ubuntu 20.04 repository, install Memcached alongside other dependencies and packages using following command:
Once the installation is completed, run the following command to start the Memcached server:
Step 3. Configure Memcached.
Before configuring Memcached, you need to ensure that it is listening to the local interface 127.0.0.1. For default level configuration, we will check for the following settings under the Memcached configuration file found in /etc/memcached.conf:
Set or update parameters as follows, customizing them to your needs:
This is a brief description of the parameters:
Restart the Memcached service for the changes to take effect:
Step 4. Configure Firewall.
With the Firewall running, we can finally set up the firewall rules:
Step 5. Install the Memcached PHP Extension.
To use Memcached as a caching database for your PHP application such as WordPress or Joomla, you need to install the php-memcached extension:
Now, restart Apache to apply the changes:
That’s all you need to do to install Memcached on Ubuntu 20.04 Focal Fossa. I hope you find this quick tip helpful. If you have questions or suggestions, feel free to leave a comment below.