Chris Hills Chaz6

update: https://framagit.org/tytan652/ffmpeg-ndi-patch use this patch. this gist is outdated

ffmpeg 4.4 with NDI

This patch adds libndi_newtek to last ffmpeg version, and fix timecode related issues that produces wrong PTS/DTS timestamps that seems to happen with newer NDI SDKs.

changes

Updated libndi methods by newer versions (v2/v3)

A half-hour to learn Zig

This is inspired by https://fasterthanli.me/blog/2020/a-half-hour-to-learn-rust/

Basics

the command zig run my_code.zig will compile and immediately run your Zig program. Each of these cells contains a zig program that you can try to run (some of them contain compile-time errors that you can comment out to play with)

MITRE ATT&CK Data Format

The MITRE ATT&CK JSON file is a flat JSON structure which is difficult to parse. To parse this JSON file, there are several different approaches but the type key is the, well, key!

The types within this JSON are the following (as well as the common wording used for this type):

attack-pattern (Techniques)
relationship (This is a unique type that contains relationships between types)
course-of-action (Mitigations)
identity (unused)

Dual-stack VyOS Zone based Firewall Generator

A ruby script to generate the boilerplate for a dual-stack VyOS zone based firewall.

Zones:

PRIVATE: contains the LAN and WAN modem admin interface
PUBLIC: The Internet - contains the PPPoE interface

Using Git Commit Message Templates to Write Better Commit Messages

The always enthusiastic and knowledgeable mr. @jasaltvik shared with our team an article on writing (good) Git commit messages: How to Write a Git Commit Message. This excellent article explains why good Git commit messages are important, and explains what constitutes a good commit message. I wholeheartedly agree with what @cbeams writes in his article. (Have you read it yet? If not, go read it now. I'll wait.) It's sensible stuff. So I decided to start following the

	MIT License

	Copyright (c) 2021 Daniel Ethridge

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is
	furnished to do so, subject to the following conditions:

	Mute these words in your settings here: https://twitter.com/settings/muted_keywords

	ActivityTweet
	generic_activity_highlights
	generic_activity_momentsbreaking
	RankedOrganicTweet
	suggest_activity
	suggest_activity_feed
	suggest_activity_highlights
	suggest_activity_tweet

	# Requires: curl, jq

	# Download MITRE ATT&CK data from GitHub repository
	curl -o enterprise-attack.json https://raw.githubusercontent.com/mitre/cti/master/enterprise-attack/enterprise-attack.json

	# List all ATT&CK object types
	jq -r '[ .objects[].type ] \| unique \| .[]' enterprise-attack.json

	# List all ATT&CK technique identifiers
	jq -r '[ .objects[] \| select(.type == "attack-pattern") \| .external_references[] \| select(.source_name == "mitre-attack") \| .external_id ] \| sort \| .[]' enterprise-attack.json

	import itertools
	import os

	import adaptive
	import holoviews.plotting.mpl
	import matplotlib
	import matplotlib.cm
	import matplotlib.tri as mtri
	import numpy as np
	from matplotlib import animation

	default['sshd']['sshd_config']['AuthenticationMethods'] = 'publickey,keyboard-interactive:pam'
	default['sshd']['sshd_config']['ChallengeResponseAuthentication'] = 'yes'
	default['sshd']['sshd_config']['PasswordAuthentication'] = 'no'