@thomaswilley thomaswilley

Deploy Node.js Application to DigitalOcean

This step by step tutorial will show you how to set up a Node.js server with MongoDB to DigitalOcean using PM2, NGINX as reverse proxy and a SSL from LetsEncrypt. We will also add a custom domain name.

Prerequisites

Download PuTTY & PuTTYgen
Download WinSCP
Have your application on a GitHub repo.

Create Droplet & Generate SSH Key

Caveats

NOTE: I had to reboot after doing this to eliminate display artifacts.
Also, the dock doesn't appear to support using both of the displayport ports simultaneously :'(
And MST (https://en.wikipedia.org/wiki/DisplayPort#Multi-Stream_Transport_(MST) ) doesn't seem to work on this dock, so you can't daisy chain monitors.

TLDR

download driver from http://www.displaylink.com/downloads/ubuntu
unpack

Install psql on WSL

Home

This install is pretty different from previous versions of psql install instructions for windows. This install uses the WSL and Ubuntu shell.

We are installing this through the Ubuntu command line which is different from the other Ubuntu install instructions because those instructions use Ubuntu's GUI, which we don't have access to here.

NOTE: Since this is a service that is running on Ubuntu, you should be in the the Ubuntu file system when running these commands!

Install

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

	#!/usr/bin/bash -xe

	cat <<EOF > "${HOME}/.config/systemd/user/zoom.slice"
	[Slice]
	AllowedCPUs=0-4
	MemoryHigh=6G
	EOF

	cat /usr/share/applications/Zoom.desktop \| sed -E 's#^(Exec=).*$#Exec=/usr/bin/systemd-run --user --slice=zoom.slice /opt/zoom/ZoomLauncher#' > "${HOME}/.local/share/applications/Zoom.desktop"

	Mute these words in your settings here: https://twitter.com/settings/muted_keywords

	ActivityTweet
	generic_activity_highlights
	generic_activity_momentsbreaking
	RankedOrganicTweet
	suggest_activity
	suggest_activity_feed
	suggest_activity_highlights
	suggest_activity_tweet

	#include <time.h> // Robert Nystrom
	#include <stdio.h> // @munificentbob
	#include <stdlib.h> // for Ginny
	// 2008-2019

	const int H = 40;
	const int W = 80;
	int m[H][W];

	int g(int x)

	Copy&Paste of : https://goo.gl/rzTJD1

	self-link (web): https://goo.gl/rzTJD1
	self-link (doc): https://goo.gl/kZDBHC
	# linux userX -> remotey (only over local network)
	Notes from setting rsync systemd.timer .
	systemd.timers
	references:
	https://www.freedesktop.org/software/systemd/man/systemd.timer.html
	https://www.freedesktop.org/software/systemd/man/systemd.unit.html

	# Create background noise profile from mp3
	/usr/bin/sox noise.mp3 -n noiseprof noise.prof

	# Remove noise from mp3 using profile
	/usr/bin/sox input.mp3 output.mp3 noisered noise.prof 0.21

	# Remove silence from mp3
	/usr/bin/sox input.mp3 output.mp3 silence -l 1 0.3 5% -1 2.0 5%

	# Remove noise and silence in a single command