PfSense has many more goodies hidden away, ready to install. Useful examples include snort, syslog or NMAP. These tools aka “packages” can be found under x and y. Select them and they will install themselves. Exercise caution, as some may require significant resources.
Last month we covered how to build an isolated but internet-capable test network for experimentation with no risk of breaking your network. Assuming that everything is working as expected, this month we’ll build on what was created in the last issue (see https://bit.ly/lxf280network). We’ll create a more complex network environment incorporating additional virtual networks and add additional physical hosts within the internal-only environment that comes with VirtualBox.
It can be useful to have more than one test network, given that Linux users like to experiment with multiple technologies or even mimic a larger, more complex network. The networks can either be isolated or joined to the existing infrastructure.
By default, VirtualBox has only one internal-only “intnet” network to select out of the box. For this tutorial’s purposes we require an additional network. Fortunately, it’s straightforward to add additional host-based virtual networks to the VirtualBox environment.
To add a second internal-only network, create a new machine (or open an existing one) and navigate to the VirtualBox network configuration page for the VM (virtual machine). Select Internal from the Attached to part of the interface type. Where the name field is set to intnet, just use the cursor on the text field and type intnet1 or whatever name is appropriate. This creates a second isolated internal network to use.
That network still has to be added to our new pfSense network and enabled in VirtualBox and the pfSense router. To do this, power down the pfSense router. Do it through the WEB UI, which ensures the shutdown is clean. Click the Diagnostics dropdown and select Halt System. Then edit the pfSense VM in VirtualBox and navigate to the VM Network tab.
Select the third network adapter (use the PDF above to follow from the previous instalment where we created an upstream network and an isolated network) and enable the network interface using the tick box. Be sure to select Internal network and the select the second intnet network that was created a few moments ago.
At this point the third network is attached and its IP configuration still needs to be enabled and configured.
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