Sebastian N. megamorf

My Elasticsearch cheatsheet with example usage via rest api (still a work-in-progress)

Shortlinks:

Cluster Health
- Index Level
- Shard Level
Nodes Overview
Indices Overview
Cluster Maintenance

Exporting your 2FA tokens from Authy to transfer them into another 2FA application

IMPORTANT - Update regarding deprecation of Authy desktop apps

Past August 2024, Authy stopped supported the desktop version of their apps:
See Authy is shutting down its desktop app | The 2FA app Authy will only be available on Android and iOS starting in August for details.

And indeed, after a while, Authy changed something in their backend which now prevents the old desktop app from logging in. If you are already logged in, then you are in luck, and you can follow the instructions below to export to tokens.

If you are not logged in anymore, but can find a backup of the necessary files, then restore those files, and re-install Authy 2.2.3 following the instructions below, and it should work as expected.

I'm learning about SOPS and setting it up as my preferred mechanism for storing secrets. Here are my notes.

PGP

It’s security mechanism is that we (i.e. client) use a PUBLIC key from the receiver (i.e. server) and encode it with a random key (I’m saying nonce but it could be reused)

This varies from RSA and SSH because the server uses a PUBLIC key to identify the client.

Web of trust

Web of trust operates by still using PGP (i.e. encoding with recipient’s public key) but additionally, we can encrypt/sign the data as our own by signing it with the client’s private key.

This means the recipient will initially decrypt via our (i.e. client’s) public key (verifying the source) and then decrypting via their (i.e. server’s) private key to get the data.

	function ConvertTo-Object {
	param(
	[Parameter(Mandatory=$true,ValueFromPipeline=$true)]
	[AllowEmptyString()]
	[string[]]$InputString,

	[Parameter(Mandatory=$true,ValueFromRemainingArguments=$true)]
	[string[]]$Pattern
	)

	#!/bin/bash

	# This script intend to mimic TimeMachine exclude list.
	# As the exclude list can evolve between backups it has to be rebuilt before every backup
	# Apple uses 5 types of excludes, four from the /System/Library/CoreServices/backupd.bundle/Contents/Resources/StdExclusions.plist file
	# and files from applications where metadata says to not backup, these can be found usinf
	# sudo mdfind "com_apple_backup_excludeItem = 'com.apple.backupd'"

	SYSLOG=/usr/bin/syslog;
	TEMPFILE=$1;

	// ==UserScript==
	// @name Get rid of EU Cookie Banners
	// @namespace http://blog.deobald.org/
	// @description Get rid of EU Cookie Banners
	// @license http://creativecommons.org/licenses/by-nc-sa/3.0/
	// @downloadURL https://gist.githubusercontent.com/BlaM/6d826d6e9d77d2d77bf9a92fdad55788/raw/cookiebanner-go-away.user.js
	// @homepage https://gist.github.com/BlaM/6d826d6e9d77d2d77bf9a92fdad55788
	// @version 0.3.4
	// @author Dominik Deobald
	// @match http:///*

	function Start-Demo {
	[CmdletBinding()]
	param(
	# A history file with a command on each line (or using ` as a line-continuation character)
	[Parameter(Mandatory)]
	[Alias("PSPath")]
	[string]$Path
	)
	[Microsoft.PowerShell.PSConsoleReadLine]::ClearHistory()

	Function Get-WinEventXPathFilter
	{
	<#
	.SYNOPSIS
	This function generates an xpath filter that can be used with the -FilterXPath
	parameter of Get-WinEvent. It may also be used inside the <Select></Select tags
	of a Custom View in Event Viewer.
	.DESCRIPTION
	This function generates an xpath filter that can be used with the -FilterXPath
	parameter of Get-WinEvent. It may also be used inside the <Select></Select tags

	### SYMBOLIC LINK FILES
	# Create a new symbolic link file named MySymLinkFile.txt in C:\Temp which links to $pshome\profile.ps1
	cd C:\Temp
	New-Item -ItemType SymbolicLink -Name MySymLinkFile.txt -Target $pshome\profile.ps1 # File
	# Target is an alias to the Value parameter

	# Equivalent to above
	New-Item -ItemType SymbolicLink -Path C:\Temp -Name MySymLinkFile.txt -Value $pshome\profile.ps1

	# Equivalent to above

	require_relative "test_helper"

	require "open-uri"
	require "net/http"

	class EmojiTest < Blog::Test
	def test_no_emoji
	posts.each do \|post\|
	content = File.read(post)
	refute_match /:[a-zA-Z0-9_]+:/, content,