trasherdk

#!/usr/bin/env bash

# @example
# chmod a+x randommac.sh
# ./randommac.sh wlp2s0

# @credits original macOS / osX version via @rem
# https://remysharp.com/2017/05/29/getting-free-wifi

if [ "$1" != "" ]; then

trasherdk

<?php
/**
 * simple method to encrypt or decrypt a plain text string
 * initialization vector(IV) has to be the same when encrypting and decrypting
 * 
 * @param string $action: can be 'encrypt' or 'decrypt'
 * @param string $string: string to encrypt or decrypt
 *
 * @return string
 */

trasherdk

<?php 
// Server file
class PushNotifications {

	// (Android)API access key from Google API's Console.
	private static $API_ACCESS_KEY = 'AIzaSyDG3fYAj1uW7VB-wejaMJyJXiO5JagAsYI';
	// (iOS) Private key's passphrase.
	private static $passphrase = 'joashp';
	// (Windows Phone 8) The name of our push channel.
        private static $channelName = "joashp";

trasherdk

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

trasherdk

Common OpenSSL Commands with Keys and Certificates

SSL Info

Generate RSA private key with certificate in a single command

openssl req -x509 -newkey rsa:4096 -sha256 -keyout example.key -out example.crt -subj "/CN=example.com" -days 3650 -passout pass:foobar

Generate Certificate Signing Request (CSR) from private key with passphrase

openssl x509 -x509toreq -in example.crt -out example.csr -signkey example.key -passin pass:foobar

trasherdk

Demonstrates chart generation on both server side (top chart) using node.js and client side (bottom chart).

Note: For the purpose of this example and not having node.js available servers side, chart.svg has been pre generated using instructions for this project:

npm install
node index.js > chart.svg

trasherdk

<?php

// The URL where the test-auth.php script resides.
define("POST_DATA_TO_URL", "http://someurl/my-script.php");

// Function to send value to my-script.php script via cURL with digest authentication.
function submitValue($myValue) {
	$ch = curl_init(POST_DATA_TO_URL);
	curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
	curl_setopt($ch, CURLOPT_USERPWD, "admin:mypass");

trasherdk

Setup remote repository:

ssh git@example.com
mkdir my_project.git
cd my_project.git
git init --bare

On local machine:

cd my_project

trasherdk

# The command finds the most recent tag that is reachable from a commit.
# If the tag points to the commit, then only the tag is shown.
# Otherwise, it suffixes the tag name with the number of additional commits on top of the tagged object 
# and the abbreviated object name of the most recent commit.
git describe

# With --abbrev set to 0, the command can be used to find the closest tagname without any suffix:
git describe --abbrev=0

# other examples

trasherdk

# Append to apache2.conf
# Dont forget to repalce [user] [password] [dbname] with you own info
# ref: https://httpd.apache.org/docs/2.4/mod/mod_dbd.html
# ref: https://httpd.apache.org/docs/2.4/mod/mod_authn_dbd.html

<IfModule mod_authn_dbd.c>
DBDriver mysql
DBDParams host=localhost,port=3306,user=apache,pass=apache,dbname=auth
DBDMin  2
DBDKeep 8