oleduc

#!/bin/bash

# Cores reserved for the host machine
# Must include QEMU IO/Emulation cores if configured
# Ex: 1st Core -> reserved=0
# Ex: 1st & 2nt Cores -> reserved=0,1
# Ex: 1st Physical Core (16 Virtual Cores) -> reserved=0,8
reserved=0,8

# Host core range numbered from 0 to core count - 1

x0nu11byt3

ELF Format Cheatsheet

Introduction

Executable and Linkable Format (ELF), is the default binary format on Linux-based systems.

Compilation

jart

/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8     -*-│
│vi: set et ft=asm ts=8 tw=8 fenc=utf-8                                     :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
│                                                                              │
│ Permission to use, copy, modify, and/or distribute this software for         │
│ any purpose with or without fee is hereby granted, provided that the         │
│ above copyright notice and this permission notice appear in all copies.      │
│                                                                              │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │

null-dev

#!/usr/bin/env bash

# 1. Download and install the QEMU hook helper from here: https://github.com/PassthroughPOST/VFIO-Tools
# 2. Place this file in /etc/libvirt/hooks/qemu.d/NAME OF YOUR VM/prepare/begin/disable-fb.sh
# 3. Make disable-fb.sh executable.

VM_NAME="$1"
echo "libvirt-qemu disable-fb: Disabling efi-framebuffer to prepare to pass GPU to VM $VM_NAME" > /dev/kmsg 2>&1
echo "efi-framebuffer.0" > /sys/bus/platform/devices/efi-framebuffer.0/driver/unbind

Th3Whit3Wolf

What's Cool

• Encrypted root partition
  • AES-256 bit cipher
  • Argon2id variant for PBKDF
  • Sha3-512 bit hash
• rEFInd bootloader
  • With dreary theme
  • Optimal Settings (optimized for aesthetics, and boot time)
• Boot into backups thanks to refind-btrfs

jart

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
│                                                                              │
│ Permission to use, copy, modify, and/or distribute this software for         │
│ any purpose with or without fee is hereby granted, provided that the         │
│ above copyright notice and this permission notice appear in all copies.      │
│                                                                              │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │

ShannonScott

#!/bin/bash
# Get a list of GPUs in a system
#
# Useful nvidia-smi Queries
# https://nvidia.custhelp.com/app/answers/detail/a_id/3751/~/useful-nvidia-smi-queries

# Get GPU names as a bach array, replace spaces with underscores
gpu_names=($(nvidia-smi --query-gpu=gpu_name --format=csv,noheader | tr -s ' ' '_'))

for name in "${gpu_names[@]}"

ShannonScott

Capture a video of a given X Window with gstreamer.

X Window ID

Get the target window ID with the following:

xwininfo

fartbagxp

Articles about eDNS

NolaCon 2017 GBC04 EDNS Client Subnet ECS DNS CDN Magic or Secur Jim Nitterauer

archive.is not resolving under 1.1.1.1 Cloudflare DNS resolver

Commands to try

Resolving Google using two different IP address will provide two different results.

• dig +short @8.8.8.8 google.com +subnet=120.5.5.6

nucliweb

Image & Video Optimization

Twitter accounts you should follow if you like Image & Video Optimization

People

• Addy Osmani
• Christoph Erdmann
• Colin Bendell
• Doug Sillars