Illyan Garte illnyang

Upgrade Qbittorrent HTTP Announces to HTTP/2

Motivation

You probably don't want to do what is described in this document. Seriously consider just leaving things alone.

Because Qbittorrent, and most all torrent clients, still use HTTP/1.1, they typically do not reuse connections for multiple announces of different torrents to the same tracker announce URL. As the number of torrents goes up, there ends up being a lot of traffic back and forth just re-establishing a connection for each announce. This is highly inefficient, and while it is not really a problem for most users, or even most tracker operators, it is something that can start to be noticed at at the tracker level at a very large scale.

Using a more modern protocol, like HTTP/2, addresses this inefficiency by reusing an established connection. Unfortunately, Transmission is really the only torrent client that implements HTTP/2 right now. For Qbittorrent, the issue resides in an underlying library, libtorrent. The issue was raised in 2020,

Arch Linux Full-Disk Encryption Installation Guide

This guide provides instructions for an Arch Linux installation featuring full-disk encryption via LVM on LUKS and an encrypted boot partition (GRUB) for UEFI systems.

Following the main installation are further instructions to harden against Evil Maid attacks via UEFI Secure Boot custom key enrollment and self-signed kernel and bootloader.

Preface

You will find most of this information pulled from the Arch Wiki and other resources linked thereof.

Note: The system was installed on an NVMe SSD, substitute /dev/nvme0nX with /dev/sdX or your device as needed.

Reducing build times by 20 % with a one line change

Experimenting a bit with the /d2cgsummary and /d1reportTime flags described by Aras here and here I noticed that one of our functions was consistently showing up in the Anomalistic Compile Times section:

1>	Anomalistic Compile Times: 2
1>		create_truth_types: 0.643 sec, 2565 instrs
1>		draw_nodes: 0.180 sec, 5348 instrs

Tinc setup instructions for Ubuntu and Windows. Based on 1 2.

Start here.

sudo apt-get install -y build-essential libncurses5-dev libreadline6-dev libzlcore-dev zlib1g-dev liblzo2-dev libssl-dev
Download and install tinc
2.1. Download the latest tinc 1.1 source package ( current: wget https://www.tinc-vpn.org/packages/tinc-1.1pre16.tar.gz -O tinc.tar.gz)
- tar -xf tinc.tar.gz --one-top-level --strip-components=1
- cd tinc
- ./configure

Windows system calls

...by stub

x86

Windows XP

B8 ?? ?? ?? ??                mov     eax, ??
BA 00 03 FE 7F                mov     edx, 7FFE0300h

	meta:
	id: coff
	title: Common Object Format File
	file-extension:
	- obj
	license: CC0-1.0
	ks-version: 0.9
	endian: le
	doc-ref: https://wiki.osdev.org/COFF
	seq:

	using Nuklear
	using Nuklear.LibNuklear
	using Nuklear.GLFWBackend
	using CImGui
	using CImGui.CSyntax
	using CImGui.GLFWBackend
	using CImGui.OpenGLBackend
	using CImGui.GLFWBackend.GLFW
	using CImGui.OpenGLBackend.ModernGL

	All albums uploaded to the /jp/ denpa thread since June 2018.
	IF A LINK IS DEAD PLEASE CHECK THE LINKS HERE FIRST: https://gist.github.com/dnpcllctns/9424fcc4c80429253d3194251b4a15ed
	If it's not there/not available then comment and let me know!
	For uploads 2016 - 2018 see https://nyaa.si/view/1068471 or https://gist.github.com/dnpcllctns/9424fcc4c80429253d3194251b4a15ed

	June - December 2018:
	妄想の旅団 - 古代アイドル!黄泉比良坂88! (FLAC) - https://mega.nz/#F!W8UUVSwJ!1H_Y1fn55w-PqFqP0UUy-g
	妄想の旅団 - ゆりゆりやんもえフィーバー (FLAC) - https://mega.nz/#F!ihFCCS7L!0fN-sPmjfW1r76DSW_EQ8w
	シルクパラソル collection- https://mega.nz/#F!K91hzIqS!PPuzfXX0neFufLV5-le6Ww
	とろ美　‐ ねぎとろ美 - https://mega.nz/#!qgE01IjJ!C4IV1FwCy81ZqYpRM_AUx1mDeQIag1HvlWjdPyNHJxk

	#include <imgui/imgui.h>
	#include <SDL2/SDL_syswm.h>
	#include "myon/imgui.hpp"
	#include "myon/window.hpp"
	#include "myon/timer.hpp"
	#include "myon/cache.hpp"
	#include "math/matrix.hpp"
	#include <bgfx/bgfx.h>
	#include <imgui/imgui_demo.cpp>
	#include <imgui/imgui_lua_bindings.cpp>

	# version 2025 august 18
	ssl_certificate /etc/letsencrypt/live/my.jult.net/fullchain.pem;
	ssl_certificate_key /etc/letsencrypt/live/my.jult.net/privkey.pem;
	ssl_trusted_certificate /etc/letsencrypt/live/my.jult.net/chain.pem;

	#ssl_protocols TLSv1.2 TLSv1.3;
	ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;

	# generated using:# openssl dhparam -dsaparam -out /etc/ssl/dh4096.pem 4096
	ssl_dhparam /etc/ssl/dh4096.pem;