Jacob Hein Jahhein

About the script and cross platform

I was able to successfully run the script with versions:

Bash: GNU bash, version 4.4.19(1)-release

Wget: GNU Wget 1.19.4

Curl: ~~curl 7.58.0~~ Working on it when I can

Watch Twitch.tv livestreams with VLC

All-in-one

For those that just want to get to the point and start watching.

brew install streamlink && brew cask install vlc &&
  git clone https://gist.github.com/Jahhein/f96574f45b24aa797af13ce4c6812076 twitch-streamlink &&
  cd twitch-streamlink &&

YubiKey 4 series GPG and SSH setup guide

Written for fairly adept technical users, preferably of Debian GNU/Linux, not for absolute beginners.

You'll probably be working with a single smartcard, so you'll want only one primary key (1. Sign & Certify) and two associated subkeys (2. Encrypt, 3. Authenticate). I've published a Bash function which automates this slightly special key generation process.

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

Github : Signing commits using GPG (Ubuntu/Mac) 🔐

Do you have an Github account ? If not create one.
Install required tools
Latest Git Client
gpg tools

# Ubuntu
sudo apt-get install gpa seahorse
# MacOS with https://brew.sh/

	man() {
	env \
	LESS_TERMCAP_mb=$(printf "\e[1;31m") \
	LESS_TERMCAP_md=$(printf "\e[1;31m") \
	LESS_TERMCAP_me=$(printf "\e[0m") \
	LESS_TERMCAP_se=$(printf "\e[0m") \
	LESS_TERMCAP_so=$(printf "\e[1;44;33m") \
	LESS_TERMCAP_ue=$(printf "\e[0m") \
	LESS_TERMCAP_us=$(printf "\e[1;32m") \
	man "$@"

	# In order for gpg to find gpg-agent, gpg-agent must be running, and there must be an env
	# variable pointing GPG to the gpg-agent socket. This little script, which must be sourced
	# in your shell's init script (ie, .bash_profile, .zshrc, whatever), will either start
	# gpg-agent or set up the GPG_AGENT_INFO variable if it's already running.

	# Add the following to your shell init to set up gpg-agent automatically for every shell
	if [ -f ~/.gnupg/.gpg-agent-info ] && [ -n "$(pgrep gpg-agent)" ]; then
	source ~/.gnupg/.gpg-agent-info
	export GPG_AGENT_INFO
	else

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