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How to Install Memcached on Ubuntu 18.04


How to Install Memcached on Ubuntu 18.04

Memcached is a free and open-source superior in-memory key-esteem information store. It is most regularly used to accelerate applications by storing different items from the consequences of information base calls. 

In this instructional exercise, we will cover the way toward introducing and arranging the most recent form of Memcached on Ubuntu 18.04. Similar guidelines apply for Ubuntu 16.04 and any Ubuntu-based dissemination. 


Prior to proceeding with this instructional exercise, ensure you are signed in as a client with sudo advantages . 

Installing Memcached

Memcached bundles are remembered for the default Ubuntu 18.04 storehouses. The establishment is pretty direct, simply follow the means beneath: 

Start by refreshing the adept bundles list: 

sudo apt update

Introduce Memcached by composing: 

sudo apt install memcached libmemcached-tools

The libmemcached-apparatuses bundle gives a few order line instruments to dealing with the Memcached worker. 

When the establishment is finished, the Memcached administration will begin naturally. To check the status of the administration, enter the accompanying order: 

sudo systemctl status memcached

The yield will resemble this: 

? memcached.service - memcached daemon
  Loaded: loaded (/lib/systemd/system/memcached.service; enabled; vendor preset: enabled)
  Active: active (running) since Tue 2019-04-30 15:13:41 PDT; 37s ago
    Docs: man:memcached(1)
Main PID: 10753 (memcached)
   Tasks: 10 (limit: 2319)
  CGroup: /system.slice/memcached.service
          `-10753 /usr/bin/memcached -m 64 -p 11211 -u memcache -l -P /var/run/memcached/

That is it, now you have Memcached introduced and running on your Ubuntu 18.04 worker. 

Configuring Memcached

Memcached can be arranged by altering the/and so on/memcached.conf document. The default setup settings are adequate for most clients. 

As a matter of course, Memcached is arranged to tune in on localhost as it were. In the event that the customer interfacing with the worker is likewise running on a similar host you don't have to change the default design record. 

Remote Access

When inappropriately arranged Memcached can be utilized to play out a dispersed refusal of-administration (DDoS) assault. In the event that you need to permit far off admittance to your Memcached worker, you have to design your firewall and permit admittance to the Memcached UDP port 11211 just from confided in customers. 

The accompanying model accepts that you need to interface with your Memcached worker over a private organization. The worker IP is and the customer's IP address is 

Ubuntu accompanies a firewall arrangement apparatus called UFW. As a matter of course, UFW is introduced however not empowered. Prior to empowering the UFW firewall first add a standard that will permit approaching SSH associations: 

sudo ufw allow 22

Permit survey from the far off customer IP address: 

sudo ufw allow from to any port 11211

Empower UFW with by composing: 

sudo ufw status

When your firewall is arranged the subsequent stage is to alter the Memcached design and set the Memcached administration to tune in on the worker's private systems administration interface: 

To do as such, open the memcached.conf arrangement record: 

sudo nano /etc/memcached.conf

Find the line that starts with - l and supplant with the worker IP address 


# Specify which IP address to listen on. The default is to listen on all IP addresses
# This parameter is one of the only security measures that memcached has, so make sure
# it's listening on a firewalled interface.

Restart the Memcached administration for the progressions to produce results: 

sudo systemctl restart memcached

You would now be able to interface with the Memcached worker from your far off area. 

Connecting to Memcached

To interface with the Memcached worker you have to utilize a language-explicit customer. 


To utilize Memcached as a reserving information base for your PHP application, for example, WordPress , Drupal , Joomla or Magento , you have to introduce the php-memcached expansion: 

sudo apt install php-memcached


There are a few Python libraries for connecting with memcache. You can introduce your favored library utilizing pip : 

pip install pymemcache
pip install python-memcached


You have figured out how to introduce Memcached on your Ubuntu worker. For more data on this point counsel Memcached Wiki . 

On the off chance that you have any inquiries or criticism, don't hesitate to remark underneath.