Jose Quintana joseluisq

^ = Ctrl key M = Alt key

^G      (F1)            Display this help text
^X      (F2)            Close the current file buffer / Exit from nano
^O      (F3)            Write the current file to disk
^J      (F4)            Justify the current paragraph

^R      (F5)            Insert another file into the current one

How to generate an SSL CSR or self signed SSL certificate

Overview

The following is an extremely simplified view of how SSL is implemented and what part the certificate plays in the entire process.

Normal web traffic is sent unencrypted over the Internet. That is, anyone with access to the right tools can snoop all of that traffic. Obviously, this can lead to problems, especially where security and privacy is necessary, such as in credit card data and bank transactions. The Secure Socket Layer is used to encrypt the data stream between the web server and the web client (the browser).

SSL makes use of what is known as asymmetric cryptography, commonly referred to as public key cryptography (PKI). With public key cryptography, two keys are created, one public, one private. Anything encrypted with either key can only be decrypted with its corresponding key. Thus if a message or data stream were encrypted with the server's private key, it can be decrypted only using its corresponding public key, ensuring

People

`:bowtie:`	😄 `:smile:`	😆 `:laughing:`
😊 `:blush:`	😃 `:smiley:`	☺️ `:relaxed:`
😏 `:smirk:`	😍 `:heart_eyes:`	😘 `:kissing_heart:`
😚 `:kissing_closed_eyes:`	😳 `:flushed:`	😌 `:relieved:`
😆 `:satisfied:`	😁 `:grin:`	😉 `:wink:`
😜 `:stuck_out_tongue_winking_eye:`	😝 `:stuck_out_tongue_closed_eyes:`	😀 `:grinning:`
😗 `:kissing:`	😙 `:kissing_smiling_eyes:`	😛 `:stuck_out_tongue:`

The easiest way to load the Mysql Time Zone tables from your Mac OS time zone fields is via this command:

mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root mysql

However, on many systems like mine that will fail because some of the time zone information is incompatible with the database schema for the time zone tables.

Therefore, you'll want to load the time zone information into a text file and edit it to only include the time zones you need. (Or, attempt to find the data breaking the import.)

mysql_tzinfo_to_sql /usr/share/zoneinfo > zone_import.sql

Not all random values are created equal - for security-related code, you need a specific kind of random value.

A summary of this article, if you don't want to read the entire thing:

Don't use Math.random(). There are extremely few cases where Math.random() is the right answer. Don't use it, unless you've read this entire article, and determined that it's necessary for your case.
Don't use crypto.getRandomBytes directly. While it's a CSPRNG, it's easy to bias the result when 'transforming' it, such that the output becomes more predictable.
If you want to generate random tokens or API keys: Use uuid, specifically the uuid.v4() method. Avoid node-uuid - it's not the same package, and doesn't produce reliably secure random values.
If you want to generate random numbers in a range: Use random-number-csprng.

You should seriously consider reading the entire article, though - it's

	var path = require('path');
	var fs = require('fs');

	module.exports = function mkdirP (p, mode, f) {
	var cb = f \|\| function () {};
	if (p.charAt(0) != '/') { cb('Relative path: ' + p); return }

	var ps = path.normalize(p).split('/');
	path.exists(p, function (exists) {
	if (exists) cb(null);

	#!/bin/bash

	set -x
	## Mention your database container name
	container_name=

	## Mention your mysql root password
	mysql_root_password=

	DATE=`date +%F-%H-%M-%S`

	[
	{
	"code": "AAA",
	"lat": "-17.3595",
	"lon": "-145.494",
	"name": "Anaa Airport",
	"city": "Anaa",
	"state": "Tuamotu-Gambier",
	"country": "French Polynesia",
	"woeid": "12512819",

	function slugify (text, ampersand = 'and') {
	const a = 'àáäâèéëêìíïîòóöôùúüûñçßÿỳýœæŕśńṕẃǵǹḿǘẍźḧ'
	const b = 'aaaaeeeeiiiioooouuuuncsyyyoarsnpwgnmuxzh'
	const p = new RegExp(a.split('').join('\|'), 'g')

	return text.toString().toLowerCase()
	.replace(/[\s_]+/g, '-') // Replace whitespace and underscore with single hyphen
	.replace(p, c =>
	b.charAt(a.indexOf(c))) // Replace special chars
	.replace(/&/g, `-${ampersand}-`) // Replace ampersand with custom word

Jose Quintana joseluisq

How to generate an SSL CSR or self signed SSL certificate

Overview

The Case For Go