By default Docker needs to be run as the root user.

Not practical or advisable in a production, or shared system to be consistently logged in as root (think running with scissors).

Out of the box, attempting to run Docker as a non-root user gets this error:

whoami
tom

docker run hello-world
docker: Got permission …

Doing some lab testing, and needed to add another interface on an Ubuntu server virtual machine.

Quickly added it via the host (TrueNAS), but it came unconfigured and uninitialized.

The interface is in a down state, so it doesn't show up in ifconfig without using a switch:

ifconfig
enp0s4: flags=4163< …

I wanted to use a VPN on a Linux server (Ubuntu), using Private Internet Access, but without using the PIA client.

Steps

1. Install OpenVPN (I also install curl and net-tools, as I frequently use both):

   sudo apt-get install openvpn curl net-tools
   

2. Get necessary OpenVPN files from Private Internet Access, and copy local …