Joe Landers joelanders

Edit — February 2019

This gist had a far larger impact than I imagined it would, and apparently people are still finding it, so a quick update:

TC39 is currently moving forward with a slightly different version of TLA, referred to as 'variant B', in which a module with TLA doesn't block sibling execution. This vastly reduces the danger of parallelizable work happening in serial and thereby delaying startup, which was the concern that motivated me to write this gist
In the wild, we're seeing (async main(){...}()) as a substitute for TLA. This completely eliminates the blocking problem (yay!) but it's less powerful, and harder to statically analyse (boo). In other words the lack of TLA is causing real problems
Therefore, a version of TLA that solves the original issue is a valuable addition to the language, and I'm in full support of the current proposal, which you can read here.

I'll leave the rest of this document unedited, for archaeological

Simple Security Guidelines

Using an iDevice? (Best option)

Use an iPod or an iPad without a SIM card
Use an iPhone
Do not jailbreak
Always upgrade to new iOS versions
Use Brave browser

Need Secure chat?

Linux NetFilter, IP Tables and Conntrack Diagrams

IPTABLES TABLES and CHAINS

IPTables has the following 4 built-in tables.

1) Filter Table

Filter is default table for iptables. So, if you don’t define you own table, you’ll be using filter table. Iptables’s filter table has the following built-in chains.

FreeBSD on a MacBook Pro

Since 2008 or 2009 I work on Apple hardware and OS: back then I grew tired of Linux desktop (which is going to be MASSIVE NEXT YEAR, at least since 2001), and switched to something that Just Works. Six years later, it less and less Just Works, started turning into spyware and nagware, and doesn't need much less maintenance than Linux desktop — at least for my work, which is system administration and software development, probably it is better for the mythical End User person. Work needed to get software I need running is not less obscure than work I'd need to do on Linux or othe Unix-like system. I am finding myself turning away from GUI programs that I used to appreciate, and most of the time I use OSX to just run a terminal, Firefox, and Emacs. GUI that used to be nice and unintrusive, got annoying. Either I came full circle in the last 15 years of my computer usage, or the OSX experience degraded in last 5 years. Again, this is from a sysadmin/developer ki

Channels Are Not Enough

... or Why Pipelining Is Not That Easy

Golang Concurrency Patterns for brave and smart.

By @kachayev

	#!/boot/bzImage

	# Linux kernel userspace initialization code, translated to bash
	# (Minus floppy disk handling, because seriously, it's 2017.)
	# Not 100% accurate, but gives you a good idea of how kernel init works
	# GPLv2, Copyright 2017 Hector Martin <[email protected]>
	# Based on Linux 4.10-rc2.

	# Note: pretend chroot is a builtin and affects the current process
	# Note: kernel actually uses major/minor device numbers instead of device name

	go-audit repo:
	https://github.com/slackhq/go-audit

	go-audit example configurations:
	https://github.com/slackhq/go-audit/tree/master/examples

	Blog post: Ryan Huber - Distributed Security Alerting
	https://medium.com/several-people-are-coding

	Video: NSA TAO Chief on Disrupting Nation State Hackers

	#!/bin/bash

	# Give the usual warning.
	clear;
	echo "[INFO] Automated Android root script started.\n\n[WARN] Exploit requires sdk module \"NDK\".\nFor more information, visit the installation guide @ https://goo.gl/E2nmLF\n[INFO] Press Ctrl+C to stop the script if you need to install the NDK module. Waiting 10 seconds...";
	sleep 10;
	clear;

	# Download and extract exploit files.
	echo "[INFO] Downloading exploit files from GitHub...";

	# -- coding: utf-8 --

	def Ord(ch): return ord(ch) - ord('A') # convert A-Z to 0-25
	def Chr(ch): return chr(ch + ord('A')) # convert 0-25 to A-Z
	def Text(s): return "".join(ch for ch in s if ch in "ABCDEFGHIJKLMNOPQRSTUVWXYZ")

	Rotors = { # name: (wiring, notches)
	"I": ("EKMFLGDQVZNTOWYHXUSPAIBRCJ", "Q"), # 1930 Enigma I
	"II": ("AJDKSIRUXBLHWTMCQGZNPYFVOE", "E"), # 1930 Enigma I
	"III": ("BDFHJLCPRTXVZNYEIWGAKMUSQO", "V"), # 1930 Enigma I

	###
	###
	### UPDATE: For Win 11, I recommend using this tool in place of this script:
	### https://christitus.com/windows-tool/
	### https://github.com/ChrisTitusTech/winutil
	### https://www.youtube.com/watch?v=6UQZ5oQg8XA
	### iwr -useb https://christitus.com/win \| iex
	###
	### OR take a look at
	### https://github.com/HotCakeX/Harden-Windows-Security