Elouan Martinet Exagone313

How to set up static nspawn IP address networking without a bridge

Note - this article assumes you have reasonable familiarity with systemd, networkd and nspawn/machinectl

What is this guide for

There seem to be a lot of references on the internet for nspawn networking with a bridge - but not on simply using the stock veth networking with static addresses. The default behaviour of nspawn (as of 24/03/20 and systemd:245 on Arch) is to:

Make a virtual ethernet port on the host (defined by /lib/systemd/network/80-container-ve.network)
Make a virtual ethernet port in the container (defined by /lib/systemd/network/80-container-host0.network)
Based on those configurations, serve the host port a random IP from the local network ranges with a 28 bit subnet, and a DHCP server for the host port serves a random IP in the subnet to the container

Backup android app, data included, no root needed, with adb

Note: This gist may be outdated, thanks to all contributors in comments.

adb is the Android CLI tool with which you can interact with your android device, from your PC

You must enable developer mode (tap 7 times on the build version in parameters) and install adb on your PC.

Don't hesitate to read comments, there is useful tips, thanks guys for this !

Bcrypt hash Compare issues

Bcrypt hashes generated by golang will not validate in node.js and vice versa

Golang

Get one external dependency:

go get golang.org/x/crypto/bcrypt

Then run:

Dumping games with Godmode9

Dumping games is the act of taking a game from your system or gamecart and copying it into a readable format onto your SD card. Dumping is perfectly legal if you keep the dumps to yourself, however sharing these dumps is piracy and is illegal.

This guide will tell you how to dump games from various formats and for various purposes. Dumping 3DS cartriges as .cia files is good if you want to install them to your system. Dumping them as .3ds files is good for emulators. Installed titles cannot be dumped as .3ds files. NDS cartiges can only be dumped as .nds files and cannot be installed (however, you can play them with emulators or flashcarts).

Dumping the RomFS of a game is primarily for romhacking purposess.

Go (Golang) GOOS and GOARCH

All of the following information is based on go version go1.17.1 darwin/amd64.

GOOS Values

GOOS	Out of the Box
`aix`	✅
`android`	✅

A SaltStack AWS Auto Scaling Solution

Overview

The AWS Auto Scaling Goup, configured with a customised Cloud-Init file, sends a notification to an SNS Topic, which in turn passes it onto an SQS queue that the Salt Master is subscribed to. A Reactor watches for the auto scaling events and pre-approves the new minion based on its Auto Scaling group name and instance ID.

Salt Master Configuration

cloud-init is absolute cancer. Its code is horrible. It has no documentation at all.

It took me 5 fucking hours to figure out how to properly configure networking on recent cloud-init (Ubuntu 16.04 cloud image) with local datasource.

It's not mentioned anywhere you need to provide dsmode: local. (but only if you need network-config, besides that everything is fine; someone below noted that -m flag does the same thing, good to know) Of course nobody needs documentation for network-config format either. (cloudinit/net/__init__.py is a protip, enjoy the feces dive)

Oh, and by the way - no, it's not possible to provide network-config to uvt-kvm without patching shit.

	<?php

	$fontTypes = array('woff2', 'woff', 'ttf', 'svg', 'eot');
	$gFontURL = 'http://fonts.googleapis.com/css?family=';

	$uaFonts = array(
	'woff2' => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36',
	'woff' => 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.0; Trident/4.0; GTB7.4; InfoPath.3; SV1; .NET CLR 3.1.76908; WOW64; en-US)',
	'ttf' => 'Mozilla/5.0 (Linux; U; Android 2.2.1; en-ca; LG-P505R Build/FRG83) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1',
	'svg' => 'Mozilla/5.0(iPad; U; CPU iPhone OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B314 Safari/531.21.10',

	#!/usr/bin/env bash
	nsjail --quiet --config /etc/nsjail/imagemagick-convert.cfg -- /usr/local/bin/convert "$@"