Kawsay

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Hallo zusammen, mein name ist TheMeinerLP aka Phillipp. Ich besschäftige mich nun seit 8 Jahre Aktiv mit Minecraft und bin seit mehren Jahren auch tätig als Normaler Entwickler.

Intro

Hier bitte intro Musik einfügen

Seit etwa September 2022 geht ein Virus in Form von Plugins in der Minecraft Szene umher. PaperMC hat aktiv schon darauf aufmerksam gemacht. Dazu hat ein anderer Blogger schon probiert, diesen Virus zu analysieren. Gerne würde ich hier in dieser Toilet paper einmal meine Erfahrung teilen und wie ich den Virus bis zu einem bestimmten Teil zurückverfolgt habe.

My assumption is that you should be able to discover Mastodon accounts by searching for email addresses, which should in turn query webfinger.

So for a domain that isn't hosting Mastodon, you can set up a webfinger server. Or you can just hand code some json files and serve them using nginx.

Rather than look into installing a webfinger server, I just initially want to serve up the json files directly from nginx.

Set up a redirect under example.com (as suggested in RFC 7033)

  location = /.well-known/host-meta {

Problème d'ouvertue de port non désirée sur une configuration IPTABLES

Un problème de contournement des règles iptables fixées par utilisateur peut survenir avec l’utilisation de règles iptables RELATED,ESTABLISH trop générique et le chargement de helper de service non présent ou non utilisé sur la machine (exemple FTP actif, SIP, IRC …).

True fact: Mon server MariaDB s'est fait attaqué comme ça alors que le port dans l'iptable n'était pas ouvert.

Thoughts about Rails Presenters

This is a collection of links, examples and rants about Presenters/Decorators in Rails.

The "Decorator" pattern slowly started gaining popularity in Rails several years ago. It is not part of core Rails, and there's many different interpretations about how it should work in practice.

Jay Fields wrote about it in 2007 (before he switched back to Java and then Clojure): http://blog.jayfields.com/2007/03/rails-presenter-pattern.html

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

	class Application < Rails::Application
	# Initialize configuration defaults for originally generated Rails version.
	config.load_defaults 7.0

	# ensure that `update(files: [uploaded_file])` will append, not replace
	config.active_storage.replace_on_assign_to_many = false
	end

	<script>
	function gc() {
	for (var i = 0; i < 0x80000; ++i) {
	var a = new ArrayBuffer();
	}
	}

	let shellcode = [

	// Move x18 to x28 (TEB)

	# MIT License
	# Copyright (c) 2020 Ross Becker
	#
	# Permission is hereby granted, free of charge, to any person obtaining a copy
	# of this software and associated documentation files (the "Software"), to deal
	# in the Software without restriction, including without limitation the rights
	# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	# copies of the Software, and to permit persons to whom the Software is
	# furnished to do so, subject to the following conditions:
	#

	alias ls='ls --color=auto -F'
	alias grep='grep --color=auto'
	alias fgrep='fgrep --color=auto'
	alias egrep='egrep --color=auto'
	alias ll='ls -alF'
	alias la='ls -A'
	alias l='ls -CF'
	alias less="less -R "

	alias mysqldump="mysqldump --user=$C9_USER --host=$IP"


	" _ _ "
	" _ /\|\| . . \|\|\ _ "
	" ( } \\|\|D ' ' ' C\|\|/ { % "
	" \| /\__,=_[_] ' . . ' [_]_=,__/\ \|"
	" \|_\_ \|----\| \|----\| _/_\|"
	" \| \|/ \| \| \| \| \\| \|"
	" \| /_ \| \| \| \| _\ \|"

	It is all fun and games until someone gets hacked!