darfux darfux

Ubuntu Mate 20.04 XRDP setup

Documenting XRDP setup which worked for me on Ubuntu Mate 20.04.

Some parts are taken from: http://c-nergy.be/blog/?p=14093.

Install xrdp

sudo apt install xrdp

Mappings for DMI/SMBIOS to Linux and dmidecode

Information can be put into dmi tables via some qemu-system hosts (x86_64 and aarch64). That information is exposed in Linux under /sys/class/dmi/id and can be read with dmidecode. The names are very annoyingly inconsistent. The point of this doc is to map them.

See qemu-system-x86_64 --help for the fields that qemu will accept. qemu smbios flags vary with qemu version.

Mappings

Example qemu cmdline:

qemu-system-x86_64 -smbios type=,field=value[,...]

Common

export OPT=/opt
export BUILDS=/some/where/mini_linux
mkdir -p $BUILDS

Linux kernel

Reddit post (Archived)

Table of Content

What to expect?
- Some TLDR about the idea behind
Prerequisites
- Hardware
- System & Software
Update: Attention for MUXless laptop

	#!/usr/bin/env bash

	set -e

	cd ~

	sudo -v

	# Make sure system is in a good, updated, clean, state.
	sudo apt-get -y update

	#!/usr/bin/env python
	import http.server
	import ssl

	# Create certifcate and key: https://github.com/stephenbradshaw/pentesting_stuff/blob/master/example_code/create_self_signed_https_certs.py

	context = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
	context.load_cert_chain(certfile="https_self_signed_cert.pem", keyfile="https_self_signed_key.pem")

	httpd = http.server.HTTPServer(('127.0.0.1', 443), http.server.SimpleHTTPRequestHandler)

	#!/bin/bash
	# SPDX-License-Identifier: MIT License
	# Steps:
	# 1) Make sure bash is available
	# 2) Create udev rule
	# - path to new udev rule: /etc/udev/rules.d/50-x-resize.rules
	# - udev rule content:
	# ACTION=="change",KERNEL=="card0", SUBSYSTEM=="drm", RUN+="/usr/local/bin/x-resize"
	# 3) Create /var/log/autores directory
	# 4) Create script /usr/local/bin/x-resize (this file) and make executable

	import requests


	def format_bytes(size):
	# 2**10 = 1024
	power = 2 ** 10
	n = 0
	power_labels = {0: '', 1: 'K', 2: 'M', 3: 'G', 4: 'T'}
	while size > power:
	size /= power

	<?xml version="1.0"?>
	<!-- Copyright (C) 2010-2017 Free Software Foundation, Inc.

	Copying and distribution of this file, with or without modification,
	are permitted in any medium without royalty provided the copyright
	notice and this notice are preserved. -->

	<!DOCTYPE target SYSTEM "gdb-target.dtd">
	<target>
	<architecture>i8086</architecture>

	<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
	<!-- ... -->
	<qemu:commandline>
	<qemu:arg value='-acpitable'/>
	<qemu:arg value='file=/some/path/slic.bin'/>
	<qemu:arg value='-acpitable'/>
	<qemu:arg value='file=/some/path/msdm.bin'/>
	<qemu:arg value='-smbios'/>
	<qemu:arg value='file=/some/path/smbios_type_0.bin'/>
	<qemu:arg value='-smbios'/>