Zaman 7aman

Introduction to SQLite in Python

Relevant Links:

SQLite is a C library that provides a lightweight disk-based database that doesn't require a separate server process. Applications can use SQLite for internal data storage. It's also possible to prototype an application using SQLite then later migrate to a more

cut sequence from mp4 video

ffmpeg -ss <start_time_hh:ii:ss> -i input.mp4 -to <length_in_hh:ii:ss_from_start> -c copy ./out.mp4
ffmpeg -ss 00:47:42 -i input.mp4 -to 00:01:49 -c copy ./out.mp4

create thumbnail images from input video (@30fps)

Securing traffic to upstream servers with client certificates

Info: https://www.nginx.com/resources/admin-guide/nginx-https-upstreams/

Creating and Signing Your Certs

Source: http://nategood.com/client-side-certificate-authentication-in-ngi

This is SSL, so you'll need an cert-key pair for you/the server, the api users/the client and a CA pair. You will be the CA in this case (usually a role played by VeriSign, thawte, GoDaddy, etc.), signing your client's certs. There are plenty of tutorials out there on creating and signing certificates, so I'll leave the details on this to someone else and just quickly show a sample here to give a complete tutorial. NOTE: This is just a quick sample of creating certs and not intended for production.

Node.js Deployment

Steps to deploy a Node.js app to DigitalOcean using PM2, NGINX as a reverse proxy and an SSL from LetsEncrypt

1. Sign up for Digital Ocean

If you use the referal link below, you get $10 free (1 or 2 months) https://m.do.co/c/5424d440c63a

2. Create a droplet and log in via ssh

I will be using the root user, but would suggest creating a new user

	Summary of passwords by sperglord8008s, updated November 1. 2020. For login try "root", "default", "defaul" or "root"

	00000000
	059AnkJ
	4uvdzKqBkj.jg
	7ujMko0admin
	7ujMko0vizxv
	123
	1111
	1234

	$internetSettings = "HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings";

	# Determines the current state of the proxy
	function Get-ProxyState() {
	$settings = Get-ItemProperty -Path $internetSettings;
	return $settings.ProxyEnable;
	}

	# Enables the proxy.
	# IMPORTANT: Change the defaults to something that is useful to you!

	[Desktop Entry]
	Categories=Development;
	Comment=Supercharge your API workflow
	Exec="/home/hauthorn/Programs/Postman/Postman"
	Icon=/home/hauthorn/Programs/Postman/app/resources/app/assets/icon.png
	Name=Postman
	Terminal=false
	Type=Application
	Version=1.0

	/# 1- Identify the UART interface, GPIO pins and Alternate Function #########/
	/* For example:
	* B-L475E-IOT01A:
	* PB6 ------> USART1_TX
	* PB7 ------> USART1_RX
	*
	* NUCLEO-L476RG:
	* PA2 ------> USART2_TX
	* PA3 ------> USART2_RX
	*

	'use strict';

	const crypto = require('crypto');
	const ENC_KEY = "bf3c199c2470cb477d907b1e0917c17b"; // set random encryption key
	const IV = "5183666c72eec9e4"; // set random initialisation vector
	// ENC_KEY and IV can be generated as crypto.randomBytes(32).toString('hex');

	const phrase = "who let the dogs out";

	var encrypt = ((val) => {

	Moved to:

	https://github.com/cra0zy/code-nautilus

	since people want to add features to it and no notification arrive from comments on gist.