How to Install OPNsense on Kali Linux Latest?

OPNsense is an open-source, easy-to-use and easy-to-build firewall and routing platform that is designed for small to enterprise-level networks. In this tutorial, you will learn how to install OPNsense on Kali Linux Latest.

Prerequisites

Before starting the installation process of OPNsense on Kali Linux Latest, ensure the following prerequisites:

• You should have root or sudo access to the Kali Linux system.
• You should have a minimal installation of Kali Linux Latest.

Installation Steps

Follow the below instructions step by step to install OPNsense on Kali Linux Latest:

Step 1: Update the System

First, update the Kali Linux system's package lists and upgrade the installed packages by executing the following commands:

sudo apt-get update
sudo apt-get upgrade

Step 2: Install Required Packages

OPNsense requires several packages to run successfully. To install these packages, issue the given command:

sudo apt-get install libssl-dev libncurses5-dev libreadline-dev texinfo build-essential bison flex

Step 3: Download OPNsense

Download the latest version of OPNsense from its official website using the following command:

wget https://opnsense.org/download/

Step 4: Extract OPNsense

Extract the downloaded OPNsense package using the following command:

tar -xvf opnsense-*-OpenSSL-nano-amd64.img.gz

Step 5: Copy to a Destined Drive

After extraction, copy the OPNsense package to a destined drive using the following command:

sudo dd if=opnsense-*-OpenSSL-nano-amd64.img of=/dev/sdx bs=16M

Note: Replace the "sdx" with the letter of your destined drive.

Step 6: Install OPNsense

After copying the package to the destination drive, install OPNsense using the below command:

sudo /etc/grub.d/40_custom

Add the following lines to the end of the file:

menuentry 'OPNsense' {
set root='(hdX,gptX)'
chainloader +1
}

Note: Replace "hdX,gptX" with the location of the OPNsense installation.

Step 7: Boot OPNsense

Reboot the system, and you will see the OPNsense in the boot menu. Select the OPNsense option, and it will boot the OPNsense.

Conclusion

OPNsense is a great firewall and routing platform known for its user-friendliness and security features. You have successfully installed it on your Kali Linux Latest system using the steps mentioned in the tutorial above.

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