How to Install IconCaptcha on OpenBSD

IconCaptcha is a captcha library developed by Fabian Wennink that uses icons instead of characters to make captcha more user-friendly. In this tutorial, we will walk you through the steps to install IconCaptcha on OpenBSD.

Prerequisites

Before starting the installation process, you need to have the following:

  • OpenBSD installed and configured
  • root access

Step 1: Install Apache and PHP

IconCaptcha requires a web server and a PHP interpreter. In this step, we will install Apache and PHP on OpenBSD.

  1. Open the terminal on OpenBSD and type the following command to install Apache:

    $ sudo pkg_add apache-httpd

  2. Type the following command to start Apache:

    $ sudo rcctl enable httpd
$ sudo rcctl start httpd

  3. Next, we'll install PHP by entering the following command:

    $ sudo pkg_add php

  4. After PHP installation, we need to configure Apache to work with PHP. Add the following line at the bottom of the file /etc/httpd.conf:

    Include /etc/apache24/modules.d/php-7.3.conf

  5. Restart Apache by typing:

    $ sudo rcctl restart httpd

Step 2: Install IconCaptcha

In this step, we download IconCaptcha from Fabian Wennink website and set it up.

  1. Type the following command to install unzip utility:

    $ sudo pkg_add unzip

  2. Download IconCaptcha by entering the following command:

    $ wget https://www.fabianwennink.nl/content/scripts/IconCaptcha.zip

  3. Extract the contents of the zip file using the following command:

    $ unzip IconCaptcha.zip -d /var/www/htdocs

  4. Rename the IconCaptcha directory by using:

    $ sudo mv /var/www/htdocs/IconCaptcha-master /var/www/htdocs/iconcaptcha

  5. Change ownership of the iconcaptcha directory to the Apache user and group www:

    $ sudo chown -R www:www /var/www/htdocs/iconcaptcha

Step 3: Test IconCaptcha

Once the installation is complete, you can test IconCaptcha by accessing it from a web browser.

  1. Open a web browser and enter the following URL: 

    http://localhost/iconcaptcha/example/

  2. You should see a page with a sample IconCaptcha. Enter the code and click on the Verify button to test it.

Congratulations! You have successfully installed IconCaptcha on OpenBSD. You can now use it to protect your website from spam and unwanted traffic.