Installing OPNsense: A Step-by-Step Guide

OPNsense is a popular open-source firewall that offers a wide range of features and customization options. One of its notable features is the ability to set up an OpenConnect (ocserv) server, which allows users to establish secure VPN connections. In this article, we will go through the process of installing OPNsense and setting up ocserv.

Before You Begin

It's essential to note that even if you define a certificate and root, you still need to define them in the config file. To do this, navigate to the `server-cert` directory and create a new file called `server-cert.pem`. This assumes you're using a certificate; otherwise, you can leave the first two options (Server and Root) set to none.

Installing OPNsense

To begin with, download and install OPNsense on your desired hardware. Once installed, you can access the GUI by navigating to `https://your-opnsense-ip` in your web browser.

Setting Up OCServ

From the GUI, navigate to System > Firmware > Plugins and search for ocserv. Install the plugin, which may take a few minutes to complete. Once installed, you can access the ocserv settings by navigating to VPN > OpenConnect (ocserv).

Configuring OCServ

To configure ocserv, navigate to the `config` box and enter the following details:

* Server-cert: `/usr/local/etc/ocserv/server-cert.pem`

* Root-cert: `/usr/local/etc/ocserv/root-cert.pem`

* CA-cert: `/usr/local/etc/ocserv/ca-cert.pem`

Make sure to replace these paths with your actual certificate files.

Starting OCServ

To start ocserv, log in to OPNsense and become the root user. Then, paste the following command into the terminal:

`fetch -o /usr/local/etc/pkg/repos/nf`

This will download and install any required packages for ocserv.

Setting up an OpenConnect (ocserv) server on OPNsense can be a bit challenging, but with this guide, you should be able to get it up and running quickly. Remember to define your certificate and root in the config file and replace the default paths with your actual certificate files. With ocserv set up, you'll have a secure VPN connection to protect your online activities.

I hope this helps anyone looking to setup openconnect (ocserv) server on OPNsense. Happy installing!

Installing opnsense