How To Set Up an OpenVPN Server on Ubuntu 18.04

How To Set Up an OpenVPN Server on Ubuntu 18.04

How To Set Up an OpenVPN Server on Ubuntu 18.04

Introduction

If you're looking for a way to securely access your network resources from remote locations, you may want to consider setting up an OpenVPN server. OpenVPN is a popular open-source VPN solution that provides a secure and private connection over the internet. In this tutorial, we'll guide you through the process of setting up an OpenVPN server on Ubuntu 18.04.

Prerequisites

  • An Ubuntu 18.04 server
  • Root access to the server
  • A user account with sudo privileges

Step 1: Update and Upgrade Your Server

Before you begin, it's a good idea to update and upgrade your server to ensure that you have the latest software versions and security patches. To do this, run the following commands:

sudo apt-get update
sudo apt-get upgrade

Step 2: Install OpenVPN

Next, you'll need to install OpenVPN on your Ubuntu 18.04 server. To do this, run the following command:

sudo apt-get install openvpn easy-rsa

Step 3: Set Up the Certificate Authority (CA)

In order to use OpenVPN, you'll need to set up a Certificate Authority (CA). This is a trusted entity that will issue digital certificates to clients that wish to connect to your VPN server. To set up the CA, follow these steps:

  1. Change to the easy-rsa directory:
    2. cd /usr/share/easy-rsa/
  2. Copy the sample configuration file:
    3. sudo cp vars.example vars
  3. Edit the vars file:
    4. sudo nano vars
  4. Find the section that starts with "export KEY_COUNTRY" and modify the values to match your country, state, and city:
    5. export KEY_COUNTRY="US"
export KEY_PROVINCE="CA"
export KEY_CITY="SanFrancisco"
  5. Save and close the file.
  6. Initialize the PKI (Public Key Infrastructure) directory:
    7. sudo ./easyrsa init-pki
  7. Build the CA:
    8. sudo ./easyrsa build-ca
  8. Enter a passphrase for the CA key when prompted, and confirm it:

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