Install Ejabberd on CentOS 7

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In today’s age, the age of security, many organizations like to have control of their communications. Fortunately, it has an open, secure and reliable protocol like XMPP. Thanks to this, it is possible to deploy various communication solutions for businesses and organization, specifically messaging. Therefore, today I will teach you how to install Ejabberd on CentOS 7 so that you too can take advantage of this protocol.

In case you did not know, Ejabberd is a messaging server that uses the XMPP protocol. It is open source and has a community version that will save us money, ideal if our company is small. Its main objective is to be fast and scalable, so, that it can be used in almost any scenario.

So, let us start to install Ejabberd on CentOS 7.

1. Upgrade the system and install glibc

First, you need to update the system. You know, with this you will have installed the latest security patches and you will be able to enjoy a more stable and secure system.

:~$ su
:~# yum update
1.- Upgrade the system
1.- Upgrade the system

Now, you have to install a required library. It is glibc.

:~# yum install glibc
2.- Install glibc
2.- Install glibc

So, now you have the system updated and with glibc installed, you can continue with the installation.

2. Download and install Ejabberd

The next step is to download the Ejabberd binaries from the website. In this case, I will use the binary in. RPM format. At the time of writing this post, the latest stable version of Ejabberd is 18.12.1.

:~# yum install wget
:~# wget https://www.process-one.net/downloads/downloads-action.php?file=/ejabberd/18.12.1/ejabberd-18.12.1-0.x86_64.rpm
3.- Donwload ejabberd
3.- Download ejabberd

After that, install the downloaded package using yum.

:~# mv downloads-action.php\?file\=%2Fejabberd%2F18.12.1%2Fejabberd-18.12.1-0.x86_64.rpm ejabberd.rpm
:~# rpm -ivh ejabberd.rpm
4.- Install Ejabberd on CentOS
4.- Install Ejabberd on CentOS

Note the following, the ejabberd initialization script is located at /etc/init.d/. In addition, the ejabberd user will be created.

3. Starting the Ejabberd service

Now it is necessary to work with the Ejabberd service, to start it or restart it when it is convenient.

All you have to do is copy the ejabberd.service file located in the /opt/ejabberd-18.12.1/bin/ folder to the /etc/systemd/system/ folder.

:~# cp /opt/ejabberd-18.12.1/bin/ejabberd.service /etc/systemd/system/
5.- Working with the ejabberd service
5.- Working with the ejabberd service

In order for the service to be recognized by systemd, it is necessary to refresh the services.

:~# systemctl daemon-reload
6.- Reload the services
6.- Reload the services

After that, enable and start the service. Finally, it is a good idea to check the status of the service.

:~# systemctl enable ejabberd
:~# systemctl start ejabberd
:~# systemctl status ejabberd
7.- Ejabberd service
7.- Ejabberd service

As you can see in the image above, everything is going well. It is now necessary to create an administrator account.

4. Create an administrator account and access from the web browser

To access the Ejabberd administration panel, it is necessary to create an administrator account. Let us go for it.

First, access the folder where the binary is.

:~# cd /opt/ejabberd-18.12.1/bin/

Then, use the following formula to create your user.

:~# ./ejabberdctl register user localhost your_password

Of course, replace user and your_password by yours. And localhost by your hostname.

8.- Creating the admin user
8.- Creating the admin user

After that, you have to edit one file to give administration rights to the new user.

:~# nano /opt/ejabberd/conf/ejabberd.yml
9.- Edit the configuration file
9.- Edit the configuration file

Then, restart the service to apply the changes.

:~# systemctl restart ejabberd

After that, set the right rules in the firewall for ejabberd. Remember, ejabberd uses the 5280 port.

:~# firewall-cmd --add-port=5280/tcp --permanent
:~# firewall-cmd --reload
10.- Firewall settings
10.- Firewall settings

Finally, open your web browser and go to http://SERVER_IP:5280/admin and log in. Remember the user is complete including the hostname. In my case is angelo@osradar.

11.- Administration dashboard
11.- Administration dashboard

So, that is it.

Conclusion

Ejabberd is a great alternative to deploy an XMPP server quickly and easily. That’s why Ejabberd is listed as one of the leading solutions in this segment. Its installation in CentOS 7 is quite simple and does not present too many drawbacks.

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