Darin Gordon Dowwie

How to setup Let's Encrypt for Nginx on Ubuntu 18.04 (including IPv6, HTTP/2 and A+ SLL rating)

Virtual hosts

Let's say you want to host domains first.com and second.com.

Create folders for their files:

Working With Multiple Repositories On GitHub

Most projects on GitHub have a main repository that's the focal point of activity. For example, the Example organization has the Example.com repository:

https://github.com/example/example.com

Developers of Example.com typically call this the 'upstream' repository. We'll come back to it in a moment.

Find out ip address using CLI

wget -qO- icanhazip.com
wget -qO- ipecho.net/plain; echo

curl checkip.amazonaws.com     # ipv4
curl ifconfig.co               # ipv6

When you get the following error when trying to compile your Elixir project, it is due to library maintainers not properly pinning version per dependency and being affected by a breaking change that has affected many projects downstream.

could not compile dependency :ssl_verify_fun, "mix compile" failed

To fix, simply run from command line:

Remove USB Guard From Ubuntu

If you're a sucker like me and installed usbguard on a Ubuntu variant you may find that you will have access to none of your usb devices at all, because F you. The installer automatically sets up the daemon which has no rules so will just block all of your devices. Doing a basic apt remove usbguard may fail at 25%, because also F you.

My kernel is version 4.15.0-47-generic, not sure if this stopped working at some point or what.

Regain Access

sudo echo "allow id *:*" > /etc/usbguard/rules.conf

sudo sed -i 's/PresentDevicePolicy=apply-policy/PresentDevicePolicy=allow/' /etc/usbguard/usbguard-daemon.conf

	age_groups = [lambda: random.randint(18,25),
	lambda: random.randint(25,40),
	lambda: random.randint(40,90)]

	age_group_probs = [.5, .3, .1]


	def get_choices():
	pop_choices = random.choices(age_groups, weights=age_group_probs, k=10)
	population = list(map(lambda x: x(), pop_choices))

	[dependencies]
	serde = "1.0.27"
	serde_derive = "1.0.27"
	serde_json = "1.0.9"
	serde_yaml = "0.7.3"
	diesel = { version = "1.1.1", features = ["postgres"] }
	r2d2 = "0.8.2"
	r2d2-diesel = "1.0.0"

	defmodule My.Postgres.TsRange do
	@moduledoc """
	Wraps a `Postgrex.Range` and casts to a PostgreSQL `tsrange` type.
	Works w/ecto 3.8.0, postgrex 0.16
	"""
	use Ecto.Type

	alias Postgrex.Range

	defstruct lower: nil,

	import collections
	import math
	import os
	import cv2
	import numpy as np
	import time

	MAX_LINES = 4000
	N_PINS = 36*8
	MIN_LOOP = 20 # To avoid getting stuck in a loop

	<!DOCTYPE html>
	<html>
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
	<meta content='width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0' name="viewport" />
	<link rel="icon" href="data:,">
	<title>String art</title>
	<script type="text/javascript" src="jquery.min.js"></script>
	<style>
	html, body {