ajwahab

brew is a bad neighbor

This isn't a guide about locking down homebrew so that it can't touch the rest of your system security-wise.

This guide doesn't fix the inherent security issues of a package management system that will literally yell at you if you try to do something about "huh, maybe it's not great my executables are writeable by my account without requiring authorization first".

But it absolutely is a guide about shoving it into its own little corner so that you can take it or leave it as you see fit, instead of just letting the project do what it likes like completely taking over permissions and ownership of a directory that might be in use by other software on your Mac and stomping all over their contents.

By following this guide you will:

Never have to run sudo to forcefully change permissions of some directory to be owned by your account

Download the latest ugw3 package from https://github.com/Lochnair/vyatta-wireguard/releases and install it on your USG using dpkg -i wireguard-ugw3-<version>.deb.

cd /config/auth
umask 077
mkdir wireguard
cd wireguard
wg genkey > wg_private.key
wg pubkey < wg_private.key > wg_public.key

Installing and using schemacrawler for MacOS

A recipe for generating cool SQLite database diagrams with schemacrawler on MacOS

This was tested on MacOS 10.14.5 on 2019-07-16

schemacrawler is a free and open-source database schema discovery and comprehension tool. It can be invoked from the command-line to produce, using GraphViz, images/pdfs from a SQLite (or other database type) file. It can be used from the command-line to generate schema diagrams like these:

FFmpeg cheat sheet

A list of useful commands for the FFmpeg command line tool.

Download FFmpeg: https://www.ffmpeg.org/download.html

Full documentation: https://www.ffmpeg.org/ffmpeg.html

	#!/usr/bin/env python3

	# Copyright 2022-present Viktor Szakats. The MIT License.
	# SPDX-License-Identifier: MIT

	# Convert 'apple_cloud_notes_parser'-made JSON into Markdown or HTML.
	# The goal is to export the content losslessly and with the ability to
	# continue editing them after importing or opening them in Markdown
	# editors as-is.

	#! /usr/bin/python
	# -- coding: utf-8 --

	guitarix_pgm = "guitarix -p 7000"

	import socket, json, os, time

	class RpcNotification:

	def __init__(self, method, params):

	#!/usr/bin/env bash

	set -Eeuo pipefail
	trap cleanup SIGINT SIGTERM ERR EXIT

	script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)

	usage() {
	cat <<EOF
	Usage: $(basename "${BASH_SOURCE[0]}") [-h] [-v] [-f] -p param_value arg1 [arg2...]

	# Instructions for installing Pi-hole 4.2 on UniFi CloudKey Gen 1 (UC-CK) running firmware 0.13.6
	# Pi-hole will need to be completely re-installed after every FW update or if CloudKey is reset to defaults.

	# Verify UC-CK is running firmware v0.13.6 (or later) before installing Pi-hole. If not, do:
	ubnt-systool fwupdate https://dl.ubnt.com/unifi/stage/cloudkey/firmware/UCK/UCK.mtk7623.v0.13.6.7ad551e.190225.0939.bin

	# UC-CK firmware v0.13.6 downgrades UniFi Controller to 5.10.17. Upgrade to 5.10.19 with:
	cd /tmp
	wget https://dl.ubnt.com/unifi/5.10.19/unifi_sysvinit_all.deb
	dpkg -i unifi_sysvinit_all.deb


	import cb, threading
	class Service(object):
	'''wrapper for a cb.Service. Can index characteristics by
	s[uuid] or s[index]
	'''
	def __init__(self,service):
	self.primary=service.primary
	self.uuid=service.uuid
	self.characteristics={}

	FROM ubuntu
	RUN apt update \
	&& apt install -y firefox \
	openssh-server \
	xauth \
	&& mkdir /var/run/sshd \
	&& mkdir /root/.ssh \
	&& chmod 700 /root/.ssh \
	&& ssh-keygen -A \
	&& sed -i "s/^.PasswordAuthentication.$/PasswordAuthentication no/" /etc/ssh/sshd_config \

ajwahab

brew is a bad neighbor

Installing and using schemacrawler for MacOS

A recipe for generating cool SQLite database diagrams with schemacrawler on MacOS

FFmpeg cheat sheet

Basic conversion