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詳解 WebRTC

更新: 2017-09-26
作者: @voluntas
作者サイト: http://voluntas.github.io/
バージョン: 1.2.1
セッション日時: 2017-09-24 14:20 - 15:00
セッション場所: 5号館3F

WebRTC の未来

更新: 2022-03-18
作者: @voluntas
バージョン: 2022.1
URL: http://voluntas.github.io/

Ever wanted to delete all your likes/favorites from Twitter but only found broken/expensive tools? You are in the right place.

Go to: https://twitter.com/{username}/likes
Open the console and run the following JavaScript code:

setInterval(() => {
  for (const d of document.querySelectorAll('div[data-testid="unlike"]')) {
    d.click()
 }

Initialization in C++: A Corner Case

Recently, I've been trying to find out the difference between copy-initialization (e.g. in return statements) and direct-initialization (e.g. in static_cast expressions). Besides the explicit keyword, the code posted by [Johannes] really caught my attention because recent versions of GCC and Clang exhibit different behaviors for the mentioned code. Upon further investigation, it may be surprising that these behaviors are somewhat intentional. In the following, I will try to explain this corner case of initialization in C++. This post may be a bit arcane. Anyway, have fun reading!

Introduction

Given the following code:

// -std=c++23

Nerd Fonts for your IDE

https://www.nerdfonts.com/font-downloads

The following solution thanks to @hackerzgz & @snacky101 will install all nerd fonts;

brew tap homebrew/cask-fonts
brew search '/font-.*-nerd-font/' | awk '{ print $1 }' | xargs -I{} brew install --cask {} || true

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

General rules

Follow standard conventions.
Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
Boy scout rule. Leave the campground cleaner than you found it.
Always find root cause. Always look for the root cause of a problem.

Design rules

About

I faced bandwidth issues between a WG Peer and a WG server. Download bandwidth when downloading from WG Server to WG peer was reduced significantly and upload bandwidth was practically non existent.
I found a few reddit posts that said that we need to choose the right MTU. So I wrote a script to find an optimal MTU.
Ideally I would have liked to have run all possible MTU configurations for both WG Server and WG Peer but for simplicity I choose to fix the WG Server to the original 1420 MTU and tried all MTUs from 1280 to 1500 for the WG Peer.

Testing

On WG server, I started an iperf3 server
On WG peer, I wrote a script that does the following:
- wg-quick down wg0
Edit MTU in the /etc/wireguard/wg0.conf file

	#################################################################################################################
	#
	# Version 1.4 February 2016
	# Robert Pearman (WSSMB MVP)
	# TitleRequired.com
	# Script to Automated Email Reminders when Users Passwords due to Expire.
	#
	# Requires: Windows PowerShell Module for Active Directory
	#
	# For assistance and ideas, visit the TechNet Gallery Q&A Page. http://gallery.technet.microsoft.com/Password-Expiry-Email-177c3e27/view/Discussions#content

	root = true

	[*]
	charset = utf-8
	end_of_line = lf
	indent_size = 4
	indent_style = tab
	insert_final_newline = true
	trim_trailing_whitespace = true

	0-mail.com
	007addict.com
	020.co.uk
	027168.com
	0815.ru
	0815.su
	0clickemail.com
	0sg.net
	0wnd.net
	0wnd.org