Aetherinox Aetherinox

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

Enable TCP port 2375 for external connection to Docker

See this issue.
Docker best practise to Control and configure Docker with systemd.

Create daemon.json file in /etc/docker:

 {"hosts": ["tcp://0.0.0.0:2375", "unix:///var/run/docker.sock"]}

Creating a Self-Signed Certificate

Prerequisites

You'll need to install OpenSSL to create and sign certificates.
- Linux: sudo apt-get install openssl
- MacOS: brew install openssl

Getting Started

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

Ctrl-Key: ^[
Octal: \033
Unicode: \u001b
Hexadecimal: \x1B
Decimal: 27

Host an APT repository on Github

This guide will help you host an APT repository on Github.

Prerequisites

You need to install the following packages.

reprepro

	public static string MD5Hash(string toHash)
	{
	string hashed;

	using (MD5 md5 = MD5.Create())
	{
	hashed = string.Join(string.Empty, md5.ComputeHash(Encoding.UTF8.GetBytes(toHash)).Select(b => b.ToString("x2")));
	}

	return hashed;

	using System;
	using System.Diagnostics;
	using System.Security.Cryptography;
	using System.Text;

	namespace Crtypto
	{
	class Program
	{
	static void Main(string[] args)

	ul.tree, ul.tree ul {
	list-style: none;
	margin: 0;
	padding: 0;
	}
	ul.tree ul {
	margin-left: 10px;
	}
	ul.tree li {
	margin: 0;

	X509Certificate2 cert = new X509Certificate2(@"KEY.pfx", "pfxPassword", X509KeyStorageFlags.Exportable \| X509KeyStorageFlags.PersistKeySet);
	RSACryptoServiceProvider provider = (RSACryptoServiceProvider) cert.PrivateKey;
	byte[] array = provider.ExportCspBlob(!provider.PublicOnly);
	using (FileStream fs = new FileStream("FileName.snk", FileMode.Create, FileAccess.Write))
	{
	fs.Write(array, 0, array.Length);
	}

	#!/bin/bash

	# Calculates network and broadcast based on supplied ip address and netmask

	# Usage: broadcast_calc.sh 192.168.0.1 255.255.255.0
	# Usage: broadcast_calc.sh 192.168.0.1/24


	tonum() {
	if [[ $1 =~ ([[:digit:]]+)\.([[:digit:]]+)\.([[:digit:]]+)\.([[:digit:]]+) ]]; then