Daniel Roschka Dunedan

A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.

Introduction

This is about documenting getting Linux running on the late 2016 and mid 2017 MPB's; the focus is mostly on the MacBookPro13,3 and MacBookPro14,3 (15inch models), but I try to make it relevant and provide information for MacBookPro13,1, MacBookPro13,2, MacBookPro14,1, and MacBookPro14,2 (13inch models) too. I'm currently using Fedora 27, but most the things should be valid for other recent distros even if the details differ. The kernel version is 4.14.x (after latest update).

The state of linux on the MBP (with particular focus on MacBookPro13,2) is also being tracked on https://github.com/Dunedan/mbp-2016-linux . And for Ubuntu users there are a couple tutorials (here and here) focused on that distro and the MacBook.

Note: For those who have followed these instructions ealier, and in particular for those who have had problems with the custom DSDT, modifying the DSDT is not necessary anymore - se

What I Wish I'd Known About Equity Before Joining A Unicorn

Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.

This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would

Boto3 documentation for lambda_client.invoke suggests it is possible to pass data via the ClientContext object as a string.

The string is required to be base64 encoded JSON.

To encode such a string, use:

import baseb4
base64.b64encode(b'<string>').decode('utf-8')

	#!/usr/bin/env python

	"""
	CREDITS GO TO (and most certainly others):
	http://blog.michaelboman.org/2014/01/making-virtualbox-nearly-undetectable.html
	http://www.kernelmode.info/forum/viewtopic.php?f=11&t=3478
	"""

	import re
	import random

	#! /usr/bin/env python3
	"""Fixing bluetooth stereo headphone/headset problem in debian distros.

	Workaround for bug: https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1577197
	Run it with python3.5 or higher after pairing/connecting the bluetooth stereo headphone.

	This will be only fixes the bluez5 problem mentioned above .

	Licence: Freeware

	#!/bin/sh
	# put this file in /etc/network/if-up.d/
	if iwconfig wlp4s0 \| grep -c "ESSID:\"WIFIonICE\""
	then
	curl -s "https://www.ombord.info/hotspot/hotspot.cgi?connect=&method=login&realm=db_advanced_wifi"
	fi

	/* ext2scan:
	* Scans an input stream, sector by sector, for something that looks like an ext{2,3,4} partition.
	* It does this by looking for a magic WORD, 0xEF53, at a known offset into the sector.
	* For random data, this will occur by chance around once per 32MB of data, so we also
	* check whether the first two sectors are all zeros, which is commonly true for ext partitions.
	*
	* Compile with:
	* gcc ./ext2scan.c -o ./ext2scan
	*
	* Example usage:

	#!/usr/bin/env python
	"""
	Dependancies:
	pip install "qrtools==1.4" "pyotp==2.2.6" "urllib3==1.23"
	Usage:
	qr2f.py /path/to/screenshot1 [screenshot2 [screenshot3]]
	"""

	import urllib
	import qrtools

	# use ImageMagick convert
	# the order is important. the density argument applies to input.pdf and resize and rotate to output.pdf
	convert -density 90 input.pdf -rotate 0.5 -attenuate 0.2 +noise Multiplicative -colorspace Gray output.pdf