JSXC is a popular open-source web-based messenger that can be used to chat securely on web applications. In this tutorial, we will be learning how to install JSXC on Kali Linux, the popular security-focused Linux distribution.
Before we get started, let's make sure that you have the following:
First, we need to install Apache web server and PHP dependencies. These two are necessary to run the JSXC web application.
To install, run the following command in the terminal:
sudo apt-get update
sudo apt-get install apache2 php7.4 php7.4-curl php7.4-xml
After the installation of Apache, we need to enable it to start automatically whenever the system boots up. Type the following command to enable it:
sudo systemctl enable apache2
Navigate to the official JSXC website and download the latest version of JSXC in your home directory by using wget command:
cd ~
wget https://github.com/jsxc/jsxc/archive/master.zip
Unzip the downloaded JSXC package by using the unzip command:
sudo apt-get install unzip
unzip master.zip
Move the JSXC files under the web server directory /var/www/html/. If the directory does not exist, you can create by typing the command:
sudo mkdir /var/www/html/
Then, move the JSXC files to the directory using this command:
sudo mv jsxc-master/* /var/www/html/
Apache needs permission to use the files. Type the following command to change it:
sudo chown -R www-data: /var/www/html/
sudo chmod -R 755 /var/www/html/
JSXC requires an XMPP server to run, and for this tutorial, we will be using Prosody. To install and configure Prosody, follow the instructions from the following tutorial:
https://www.digitalocean.com/community/tutorials/how-to-install-prosody-xmpp-server-on-ubuntu-18-04
Now, it's time to configure Prosody for JSXC. Open the file "/etc/prosody/conf.avail/[YOUR_HOSTNAME].cfg.lua" using a text editor such as nano:
sudo nano /etc/prosody/conf.avail/[YOUR_HOSTNAME].cfg.lua
Add the following configuration at the end of the file:
component "jsxc.[YOUR_HOSTNAME]"
component_secret = "JSXC_COMPONENT_SECRET"
Remember to replace [YOUR_HOSTNAME] with your hostname and JSXC_COMPONENT_SECRET with a secret passphrase of your choice.
Afterward, save and close the file.
Now that we made the configuration changes to Prosody and Apache web servers, we need to restart the services to apply the changes. To do so, type the following command:
sudo systemctl restart prosody.service apache2.service
Finally, it's time to launch JSXC on your web browser by accessing the following URL:
http://[YOUR_HOSTNAME]
Note that replacing [YOUR_HOSTNAME] with your hostname specified in the Prosody configuration file. To use JSXC, you need to create an XMPP account on the server and then log in to the web application.
Congratulations! You have successfully installed and configured JSXC on your Kali Linux machine.
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