Erik Nelson erikthered

Ikea Bekant standing desk with Gerton table top

Operational PGP

This is a guide on how to email securely.

There are many guides on how to install and use PGP to encrypt email. This is not one of them. This is a guide on secure communication using email with PGP encryption. If you are not familiar with PGP, please read another guide first. If you are comfortable using PGP to encrypt and decrypt emails, this guide will raise your security to the next level.

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

-E: will describe the underlaying queries of the \ commands (cool for learning!)
-l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

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

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	<!DOCTYPE html>
	<html>

	<head>
	<meta charset="utf-8">
	<title></title>
	<meta name="author" content="">
	<meta name="description" content="">
	<meta name="viewport" content="width=device-width, initial-scale=1">

	#!/bin/bash

	# Example for the Docker Hub V2 API
	# Returns all imagas and tags associated with a Docker Hub user account.
	# Requires 'jq': https://stedolan.github.io/jq/

	# set username and password
	UNAME=""
	UPASS=""

	import com.fasterxml.jackson.annotation.JsonSubTypes;
	import com.fasterxml.jackson.annotation.JsonTypeInfo;
	import com.fasterxml.jackson.databind.PropertyNamingStrategy;
	import com.fasterxml.jackson.databind.annotation.JsonNaming;


	@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "type")
	@JsonSubTypes({
	@JsonSubTypes.Type(value=AudioAttachment.class, name="audio"),
	@JsonSubTypes.Type(value=LinkAttachment.class, name="link")

	default['sshd']['sshd_config']['AuthenticationMethods'] = 'publickey,keyboard-interactive:pam'
	default['sshd']['sshd_config']['ChallengeResponseAuthentication'] = 'yes'
	default['sshd']['sshd_config']['PasswordAuthentication'] = 'no'