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.
Before we begin, make sure you have the following:
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.
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.
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.
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="me@myhost.mydomain"
Change these values to your desired configuration settings.
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.
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.
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.
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