How to Install Easy-RSA on Kali Linux Latest

Easy-RSA is a small RSA key management package that allows users to manage their Public Key Infrastructures (PKIs) and generate the needed public-private key pairs for authentication and encryption.

In this tutorial, we will learn how to install Easy-RSA on Kali Linux Latest, step by step.

Prerequisites

Before we begin, make sure you have the following:

• A running Kali Linux installation
• Active internet connection
• Sudo or root privileges

Step 1 - Install Required Packages

The first step to installing Easy-RSA is to ensure that the required packages are installed on your system. To do this, run the following command:

sudo apt update
sudo apt install easy-rsa

This will update the package repository and install the Easy-RSA package to your system.

Step 2 - Download the Easy-RSA Repository

Next, we will download the latest Easy-RSA repository from Github. To do this, run the following command:

git clone https://github.com/OpenVPN/easy-rsa.git

This command will clone the Easy-RSA repository to your current directory.

Step 3 - Copy Easy-RSA to the OpenVPN Directory

Now that we have downloaded the Easy-RSA repository, we can copy the necessary files to the OpenVPN directory. To do this, run the following command:

sudo cp -r easy-rsa /etc/openvpn

This will copy the Easy-RSA directory to the OpenVPN directory on your system.

Step 4 - Configure the Vars File

The Vars file contains the default configuration values for Easy-RSA. To configure it, navigate to the Easy-RSA directory in the OpenVPN directory and copy the vars.example file to vars:

cd /etc/openvpn/easy-rsa/3
sudo cp vars.example vars

Next, you will need to edit the vars file using your preferred text editor:

sudo nano vars

At the bottom of the file, find the following lines:

export KEY_COUNTRY="US"
export KEY_PROVINCE="CA"
export KEY_CITY="SanFrancisco"
export KEY_ORG="Fort-Funston"
export KEY_EMAIL="[email protected]"

Change these values to your desired configuration settings.

Step 5 - Create the CA

Now that we have configured Easy-RSA, we can create a Certificate Authority (CA). To do this, navigate to the Easy-RSA directory and run the following command:

cd /etc/openvpn/easy-rsa/3
sudo ./easyrsa init-pki
sudo ./easyrsa build-ca

The first command initializes the Public Key Infrastructure (PKI). The second command creates the CA.

Step 6 - Create Server and Client Certificates

Once the CA is created, we can generate server and client certificates. To do this, run the following commands:

sudo ./easyrsa gen-req server nopass
sudo ./easyrsa sign-req server server

These commands generate a server request and signs it with the CA.

Finally, we can create client certificates using the following commands:

sudo ./easyrsa gen-req client1 nopass
sudo ./easyrsa sign-req client client1

These commands generate a client request and signs it with the CA.

Conclusion

In this tutorial, we learned how to install Easy-RSA on Kali Linux Latest. We also configured Easy-RSA, created a Certificate Authority, and generated server and client certificates.