Raphael Abreu aelkz

How to Generate & Use Private Keys using OpenSSL's Command Line Tool

These commands generate and use private keys in unencrypted binary (not Base64 “PEM”) PKCS#8 format. The PKCS#8 format is used here because it is the most interoperable format when dealing with software that isn't based on OpenSSL.

OpenSSL has a variety of commands that can be used to operate on private key files, some of which are specific to RSA (e.g. openssl rsa and openssl genrsa) or which have other limitations. Here we always use

To forward X11 from inside a docker container to a host running macOS

Install XQuartz: https://www.xquartz.org/
Launch XQuartz. Under the XQuartz menu, select Preferences
Go to the security tab and ensure "Allow connections from network clients" is checked.
Run xhost + ${hostname} to allow connections to the macOS host *
Setup a HOSTNAME env var export HOSTNAME=`hostname`*
Add the following to your docker-compose:

 environment:

1. Copy m3u8 link

2. Run command

echo "Enter m3u8 link:";read link;echo "Enter output filename:";read filename;ffmpeg -i "$link" -bsf:a aac_adtstoasc -vcodec copy -c copy -crf 50 $filename.mp4

This list has been updated for Big Sur (and later). Since I don't use these versions, this guide might still need further improvements. For older macOS versions, please see this older revision.

Open in Sublime Text

Open Automator
Quick Action
Set “Service receives selected” to files or folders in any application
Add a Run Shell Script action
Set the script action to /Applications/Sublime\ Text.app/Contents/SharedSupport/bin/subl -n "$@"
Set “Pass input” to as arguments

Install dnsmasq

Via brew or other method

Set up DNS resolver order

In order to work on every connection and on any TLD, dnsmasq needs to be the first DNS resolver receving the query.

And since dnsmasq is a local process, all DNS queries need to go to 127.0.0.1

On macOS, /etc/resolv.conf is automaticaly created, depending on a variety of things (network settings, etc), so it cannot be edited.

My Openshift Cheatsheet

Project Quotes, Limits and Templates

Cluster Quota

oc create clusterquota env-qa \
    --project-label-selector environment=qa \
    --hard pods=10,services=5
    
oc create clusterquota user-qa \

Quick Setup for Sublime Text 3 for Angular 2

Easy to remember, easy to forget.

Step 1: Download Sublime Text 3

Sublime Text 3 Download

Step 2: Create a bash shortcut

It's nice to be able to run subl in a terminal.

	# first install pygmentize to the mac OS X or macOS system with the built-in python
	sudo easy_install Pygments

	# then add alias to your ~/.bash_profile or ~/.bashrc or ~/.zshrc etc.
	alias pcat='pygmentize -f terminal256 -O style=native -g'

	#!/bin/bash

	# Download GitKraken
	wget https://release.gitkraken.com/linux/gitkraken-amd64.tar.gz

	# copy the downloaded file into /opt directory
	cp gitkraken-amd64.tar.gz /opt/

	cd /opt

	#!/bin/bash


	# Download GitKraken
	wget https://release.gitkraken.com/linux/gitkraken-amd64.tar.gz

	# Extract the Kraken
	tar -xvzf gitkraken-amd64.tar.gz

	# Move the Kraken