How to Install Memcached on Debian 11 / Debian 10 | Holhol24


Memcached, the high-performance, allotted reminiscence object caching gadget, is very helpful in rushing up dynamic internet packages through assuaging database load.

Memcached is helping in minimizing the selection of calls to database methods through caching knowledge in reminiscence. As a outcome, the next requests for a similar knowledge can also be served sooner and thus reinforce internet server functionality.

Here, we will be able to see methods to set up Memcached on Debian 11 / Debian 10.

Install Memcached on Debian

The Memcached package deal is to be had within the Debian OS repository. So, you do not want to arrange exterior repositories to get the Memcached package deal.

First, replace the repository index.

sudo apt replace

Then, set up the Memcached the usage of the underneath command.

sudo apt set up -y memcached

Once the set up is done, the Memcached provider can be up and operating routinely. You can use the playstation command or systemctl command to make sure the standing of the provider.

sudo systemctl standing memcached


playstation -ef | grep -wi memcached


memcache 11047 1 0 03:40 ? 00:00:00 /usr/bin/memcached -m 64 -p 11211 -u memcache -l -P /var/run/memcached/

Configure Memcached

You can organize the Memcached provider with the assistance of its configuration record /and so forth/memcached.conf. There are 4 essential configurations during which you’ll be able to carry up the production-ready Memcached example.

The -m units the utmost reminiscence you’ll be able to use for object garage. The default reminiscence measurement is 64 MB. However, atmosphere a 256 MB cache can be advisable.

-m 256

The -p units the listening port for Memcached. The default port is 11211.

-p 11211

The -u units the Memcached provider to run as a particular person.

-u memcache

The -l units the listening cope with for Memcached. By default, the Memcached listens on localhost simplest. So, it’s possible you’ll wish to alternate it to a community interface IP cope with to permit far flung connections.

You too can specify more than one addresses separated through comma or through the usage of -l more than one instances. Here, I will be able to configure Memcached to concentrate on

Configuring the Memcached to concentrate at the IP cope with comes with safety RISK as it permits somebody to get entry to and might result in a DDoS assault. So, you should configure UFW (Firewall) to permit connections simplest from the relied on resources.

Restart the Memcached procedure.

sudo systemctl restart memcached

Set up Firewall For Memcached

As I mentioned previous, to protected the Memcached provider, it is important to configure the firewall to permit incoming connections from a relied on community to the Memcached port.

The underneath rule will permit connections from the subnet (IP cope with starting from to

sudo ufw permit from to any port 11211

sudo ufw reload

Use Memcached

There are many Memcached purchasers are to be had for programming languages like PHP, Python, Java, and so forth. However, to make use of Memcached as a caching gadget in your PHP packages equivalent to WordPress, or Joomla, it is important to set up the Memcached to extension for PHP.

sudo apt set up -y php-memcached

Once you put in the PHP extension, restart your webserver to take the impact of the brand new extension.


That’s all. I am hoping you’ve gotten discovered methods to set up Memcached on Debian 11 / Debian 10. Additionally, you’ll be able to head over to Memcached Wiki to be informed extra about Memcached.

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