Zammad is an open source web based helpdesk and customer support system build to help you manage customer communications via several channels like twitter, telephone, chat, facebook, and e-mails. The Zammad helpdesk software is released under GNU AGPLv3 license. With its REST API, you can link other programs easily and get real-time information on all your channels and operations.

Some notable features of Zammad Helpdesk are:

  • Groups: Form groups to create separation within your teams and departments
  • LDAP integration: Zammad offers you centralized user/rights management options using our secure LDAP integration
  • SSO: Zammad offers easy Single Sign-On with just one click thanks to the integration of architectures such as SAML or Shibboleth
  • External Authentication: Support for sign in through third parties such as Twitter, Facebook, LinkedIn, or Google via OAuth.
  • Time recording: Zammad enables agents to record the exact processing time per ticket
  • Exchange Integration: Support for Exchange synchronization to import Exchange address book contacts
  • Slack Integration: You can automatically receive a message in Slack when there is a new ticket
  • i-doit Integration: The i-doit integration makes it possible to keep an eye on your data, processes, and systems
  • Knowledge Base: Zammad has an extensive knowledge base that makes sure everyone is always in the picture
  • Multilingualism: Zammad web app supports over 30 languages
  • And many more

In this short article we take you through the steps used to install Zammad Helpdesk and customer support system on Ubuntu 20.04|18.04 Linux system.

Minimum server requirements:

  • 2 CPU cores
  • 4 GB of RAM (+4 GB if you want to run Elasticsearch on the same server)

For optimal performance up to 40 agents:

  • 4 CPU cores
  • 6 GB of RAM (+6 GB if you want to run Elasticsearch on the same server)

Step 1: Update System

As you already know we start all our software installation guides with system updates:

sudo apt update
sudo apt -y full-upgrade

I always recommend you perform system reboot after the upgrade has been done

sudo reboot

Step 2: Install Package Dependencies

The below dependencies need to be installed on your system. This can all be done using apt package management tool:

sudo apt install wget apt-transport-https gnupg2 libimlib2 libimlib2-dev

For Zammad to function correctly, your system has to use the correct locales.

sudo apt install locales
sudo locale-gen en_US.UTF-8
echo "LANG=en_US.UTF-8" | sudo tee /etc/default/locale

Install MariaDB Database Server:

sudo apt install mariadb-server

Secure database installation server with the command below:

$ sudo mysql_secure_installation


In order to log into MariaDB to secure it, we'll need the current
password for the root user.  If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none):
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.

Set root password? [Y/n] y
New password:
Re-enter new password:
Password updated successfully!
Reloading privilege tables..
 ... Success!

By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] y
 ... Success!

Normally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] y
 ... Success!

By default, MariaDB comes with a database named 'test' that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] y
 - Dropping test database...
 ... Success!
 - Removing privileges on test database...
 ... Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] y
 ... Success!

Cleaning up...

All done!  If you've completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!

Configure encoding

$ sudo vim /etc/mysql/mariadb.conf.d/50-server.cnf
character-set-server  = utf8mb4
collation-server      = utf8mb4_general_ci

Restart database server service:

sudo systemctl restart mariadb

Install Apache web server:

sudo apt install apache2

Add Elasticsearch repository:

wget -qO - | sudo apt-key add -
echo "deb stable main" | sudo tee  /etc/apt/sources.list.d/elastic-7.x.list
sudo apt update

Step 3: Install Zammad on Ubuntu 20.04|18.04

Install Repository Key:

wget -qO- | sudo apt-key add -

Add repository to Debian / Ubuntu system:

Ubuntu 20.04:

echo "deb 20.04 main" | sudo tee /etc/apt/sources.list.d/zammad.list

Ubuntu 18.04:

echo "deb 18.04 main" | sudo tee /etc/apt/sources.list.d/zammad.list

Now install Zammad on Ubuntu 20.04 | Debian 10 system:

sudo apt update
sudo apt install zammad

Accept installation to proceed:

The following additional packages will be installed:
  elasticsearch-oss libevent-core-2.1-7 libevent-extra-2.1-7 libpq5
The following NEW packages will be installed:
  elasticsearch-oss libevent-core-2.1-7 libevent-extra-2.1-7 libpq5 zammad
0 upgraded, 5 newly installed, 0 to remove and 0 not upgraded.
Need to get 363 MB of archives.
After this operation, 860 MB of additional disk space will be used.
Do you want to continue? [Y/n] y

If you have ufw firewall open http and https ports:

sudo ufw allow 80,443
sudo ufw reload

After you installed Elasticsearch and its attachment plugin:

sudo /usr/share/elasticsearch/bin/elasticsearch-plugin install ingest-attachment

Ensure elasticsearch is enabled by default and start it.

sudo systemctl enable elasticsearch
sudo systemctl start elasticsearch

Start Zammad service and enable it to start at system boot:

sudo systemctl start zammad
sudo systemctl enable zammad

Set the Elasticsearch server address:

sudo zammad run rails r "Setting.set('es_url', 'http://localhost:9200')"

Build the search index:

sudo zammad run rake searchindex:rebuild

First, disable the Apache default virtual host file with the following command:

sudo a2dissite 000-default.conf

Restart apache2 web server:

sudo systemctl restart apache2

Confirm service is started without an error:

$ systemctl status apache2
● apache2.service - The Apache HTTP Server
     Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset: enabled)
     Active: active (running) since Sat 2021-04-10 12:17:50 UTC; 7s ago
    Process: 2184 ExecStart=/usr/sbin/apachectl start (code=exited, status=0/SUCCESS)
   Main PID: 2201 (apache2)
      Tasks: 55 (limit: 9513)
     Memory: 6.1M
     CGroup: /system.slice/apache2.service
             ├─2201 /usr/sbin/apache2 -k start
             ├─2202 /usr/sbin/apache2 -k start
             └─2203 /usr/sbin/apache2 -k start

Apr 10 12:17:50 ubuntu systemd[1]: Starting The Apache HTTP Server...
Apr 10 12:17:50 ubuntu systemd[1]: Started The Apache HTTP Server.

I got an error “apachectl[2095]: Invalid command ‘RequestHeader’, perhaps misspelled or defined by a module not included in the server configuration“. I had to uncomment the line:

$ sudo vim /etc/apache2/sites-enabled/zammad.conf
# Line 36
#RequestHeader unset X-Forwarded-User

Then restarted apache2

sudo systemctl restart apache2

Step 4: Access Zammad Web Interface

Open your web browser and access Zammad web interface on the URL.


You should see the following screen. Select “Setup new system” to initiate configuration.

Install Zammad Helpdesk 01

Create first admin account in the next screen.

Install Zammad Helpdesk Create Admin 02

Provide organization name and click “Next“.

Install Zammad Helpdesk Configure Base 03

You can optionally configure email communication channel in the next screen

Install Zammad Helpdesk Connect Channels 04

Local MTA for sending emails from the server can be configured as well.

Install Zammad Helpdesk Email Notifications 05

After a successful configuration of Zammad from the web interface you should see a page similar to below.

Install Zammad Helpdesk Dashboard 06

To secure Web server with SSL check the official Zammad web server configuration page.

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