How To Install Memcached on Debian 9

r00t August 4, 2017

Install Memcached on Debian 9

In this tutorial we will show you how to install Memcached on Debian 9. For those of you who didn’t know, Memcached is a system daemon that allows you to cache information on RAM memory, this allows you better app speeds and avoid bad performance on your dedicated or vps server. It is very useful for optimizing dynamic websites and enabled speed by caching objects in memory.

This article assumes you have at least basic knowledge of linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation Memcached on a Debian 9 (Stretch) server.

Install Memcached on Debian 9 Stretch

Step 1. Before we install any software, it’s important to make sure your system is up to date by running these following apt-get commands in the terminal:

Step 2.  Installing Memcached.

Now use following command to install memcached service on your system:

Step 3. Configuration Memcached.

The default configuration file can be found at:

Change the settings, Example settings for 512MB caching:

Exit and save the configuration file, and then restart Memcached:

Step 4. Configure Firewall for Memcached.

Run the following commands to allow the incoming connection on Port no 11211:

Step 5. Installing Memcached extension for PHP.

You will also need to install required php extension for memcached:

Now, we can restart Apache so that the changes take place:

To test PHP, create a test file named info.php with he content below. Save the file, then browse to it to see if PHP is working:

Congratulation’s! You have successfully installed Memcached. Thanks for using this tutorial for installing Memcached on Debian 9 (Stretch) system. For additional help or useful information, we recommend you to check the official Memcached web site.

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