Abdull

Guide to Connecting to a Bluetooth Device using `bluetoothctl`

This guide walks you through the process of connecting to a Bluetooth device on a Linux system using the bluetoothctl command-line tool. It covers initial setup, scanning, pairing, and connecting procedures, along with troubleshooting tips.

Prerequisites

A Linux distribution with Bluetooth support (e.g., Arch Linux).
The bluez package installed, which provides bluetoothctl and related utilities.
A working Bluetooth adapter installed on your system.
Sudo privileges to execute commands that require root access.

This is a diff between the xz-embedded repositories listed on github and at git.tukaani.org.

$ git remote -v
github  https://github.com/tukaani-project/xz-embedded (fetch)
github  https://github.com/tukaani-project/xz-embedded (push)
origin  https://git.tukaani.org/xz-embedded.git (fetch)
origin  https://git.tukaani.org/xz-embedded.git (push)

FAQ on the xz-utils backdoor (CVE-2024-3094)

This is a living document. Everything in this document is made in good faith of being accurate, but like I just said; we don't yet know everything about what's going on.

Update: I've disabled comments as of 2025-01-26 to avoid everyone having notifications for something a year on if someone wants to suggest a correction. Folks are free to email to suggest corrections still, of course.

Background

Note: this is an ongoing process which I'm documenting here. Semi-experimental, but this is my daily driver machine since September 2021 (work included), so I'm aiming for stability (hence why I'm not using the recommended Fedora 39 Beta).

Upgraded from an Intel i7-1165G7 to AMD 7080U mainboard:

64GB (2x32GB) G.Skill F5-5600S4040A32GX2-RS
- Have an SK Hynix 16GB (2x8GB) 4800MHz (HMCG66MEBSA095N BA) kit that I'll test just to see power draw difference.
SK hynix Gold P31 2TB PCIe NVMe Gen3 M.2 2280

These notes are for Fedora 38 6.5.8-200.fc38.x86_64 with SwayWM.

Booted into Fedora with BIOS 3.02 and seemed fine. First thing I did was upgrade to 3.03.

Browser Based

Web Wormhole https://webwormhole.io/ https://github.com/saljam/webwormhole
Localsend https://web.localsend.org/
FilePizza https://file.pizza/
~~ShareDrop sharedrop.io https://github.com/szimek/sharedrop~~ (SOLD, not recommended, use one of the forks)
1. ~~A clone SnapDrop snapdrop.net https://github.com/RobinLinus/snapdrop~~ (SOLD, not recommended, use one of the forks)
  1. A fork PairDrop https://pairdrop.net/ https://github.com/schlagmichdoch/pairdrop
ToffeeShare https://toffeeshare.com/
Instant.io https://instant.io/

	// code updates are now there:
	// https://github.com/Bleuje/processing-animations-code/blob/main/code/fractalsliding2d/fractalsliding2d.pde

	// Processing code by Etienne JACOB
	// for collab with Yann Le Gall (https://demozoo.org/graphics/322553/)
	// motion blur template by beesandbombs
	// See the license information at the end of this file.
	// View the rendered result at: https://bleuje.com/gifanimationsite/single/2dfractalslidingsquares/

	// using double instead of float makes the code a bit more complicated

	#!/usr/bin/env python

	import os
	import sys
	import subprocess
	import tempfile
	import struct
	import shutil
	import hashlib

	First in pulsview set the log level to 5.
	If the error is fx2lafw: unable to get version info: libusb_error_timeout.
	Then to fix it install the firmware with:
	apt install sigrok-firmware-fx2lafw

	Assuming you have followed all the steps to install / setup WSL2 -> https://docs.microsoft.com/en-us/windows/wsl/install-win10

	Tested on Ubuntu 20.04

	Step 1 - Find out default gateway and DNS servers
	- Navigate to `Control Panel\Network and Internet\Network Connections`
	- Right click on relevant connection type WiFi or Ethernet and select `Status`
	- Status screen will be displayed, click on `Details` button
	- Network Connection details screen will be displayed
	- Note down `IPv4 default gateway` and `IPv4 DNS Servers` if available