Maciej Krüger mkg20001

git checkout master
git pull
git checkout branch
git merge master

Create Root CA (Done once)

Last update: Nov 2025.

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 ecparam -genkey -name secp384r1 | openssl ec -aes256 -out rootCA.key

Install Google Fonts

Download desired fonts

https://fonts.google.com/?selection.family=Open+Sans

Install Google Fonts on Ubuntu

cd /usr/share/fonts
sudo mkdir googlefonts
cd googlefonts
sudo unzip -d . ~/Downloads/Open_Sans.zip

Articles discussing cloud services shutting down:

Revisiting Tagless Final Interpreters

Tageless Final interpreters are an alternative to the traditional Algebraic Data Type (and generalized ADT) based implementation of the interpreter pattern. This document presents the Tageless Final approach with Scala, and shows how Dotty with it's recently added implicits functions makes the approach even more appealing. All examples are direct translations of their Haskell version presented in the Typed Tagless Final Interpreters: Lecture Notes (section 2).

The interpreter pattern has recently received a lot of attention in the Scala community. A lot of efforts have been invested in trying to address the biggest shortcomings of ADT/GADT based solutions: extensibility. One can first look at cats' Inject typeclass for an implementation of [Data Type à la Carte](http://www.cs.ru.nl/~W.Swierstra/Publications/DataTypesA

security and hardening options for systemd service units

A common and reliable pattern in service unit files is thus:

NoNewPrivileges=yes
PrivateTmp=yes
PrivateDevices=yes
DevicePolicy=closed
ProtectSystem=strict

	-- show running queries (pre 9.2)
	SELECT procpid, age(query_start, clock_timestamp()), usename, current_query
	FROM pg_stat_activity
	WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
	ORDER BY query_start desc;

	-- show running queries (9.2)
	SELECT pid, age(query_start, clock_timestamp()), usename, query
	FROM pg_stat_activity
	WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'

	preLoginHandler: function(formData, req, res, next) {
	var authRequest = {
	username: formData.login,
	password: formData.password
	};

	//Try to authenticate the user
	req.app.get('stormpathApplication').authenticateAccount(authRequest, function(err, result) {
	//if (err) return helpers.handleError(err,res);
	if (err && err.code == 7100) {

	const fs = require("fs")
	module.exports = AppManifestParser

	function isNumeric(n) {
	return !isNaN(parseFloat(n)) && isFinite(n);
	}

	function recInt(obj) { //replace numeric strings with integers
	for (var p in obj)
	if (typeof obj[p] == "object") obj[p] = recInt(obj[p]);

	/*
	* This tool will decrypt files encrypted by the Magniber ransomware with
	* AES128 ( CBC mode ) algorithm.
	*
	* RE and report by MalwareBytes ( @hasherezade )
	*
	* https://blog.malwarebytes.com/threat-analysis/2017/10/magniber-ransomware-exclusively-for-south-koreans/
	*
	* Decryptor written by Simone 'evilsocket' Margaritelli
	*