How to install Certbot plugins?

First run

To find out where certbot is installed to. Or command -v certbot if you prefer.

Then run head /usr/bin/certbot and note what version of Python it’s using:

In my case, it was using Python 3.

I noticed from my pip output it was trying to install a Python 2.7 package:

So how do we get pip to install Python 3 packages instead? Just copy the instructions from here:

Now you should have the pip3 command, so run this instead:

And now try again:

Windows on Linode

If VirtualBox does not start the VM:

RUN > CMD > bcdedit /set hypervisorlaunchtype off
then reboot host machine.

An In-Depth Guide to iptables, the Linux Firewall

This is a great guide to iptables:

An In-Depth Guide to iptables, the Linux Firewall

Tutorial: Installing OpenVPN on Ubuntu 16.04

How to install OpenVPN on Ubuntu 16.04

To configure iptables look here:


How to Configure OpenVPN Access Server to Tunnel Traffic

Install OpenVPN Access Server on Linux for Secure Communications