Eduardo Leggiero leggiero

Never touch your local /etc/hosts file in OS X again

To setup your computer to work with *.test domains, e.g. project.test, awesome.test and so on, without having to add to your hosts file each time.

Requirements

Homebrew
Mountain Lion -> High Sierra

Install

encrypted backup to s3

init encfs

first time mounting with
- encfs --reverse /path/to/backup /tmp/encrypted-s3-backup
i choose this settings:
- x - expert mode
- AES encryption - 256 bit keysize

# stop active raid
mdadm --stop /dev/md[01]

# destroy partition table on hdds
dd if=/dev/zero of=/dev/sda bs=1M count=512
dd if=/dev/zero of=/dev/sdb bs=1M count=512
dd if=/dev/zero of=/dev/sdc bs=1M count=512
dd if=/dev/zero of=/dev/sdd bs=1M count=512

How many ways can we express "::"

Both IPv4 and IPv6 allow for some flexibility in how IP addresses are expressed as strings, but IPv6 really takes it to the max. How many ways can we express the all-zeroes IPv6 address, a.k.a. "::". Let's see.

The obvious

::

Running count: 1.

How to install Ubuntu with LUKS Encryption on LVM

My work requires us to have full-disk encryption, so these are the steps I use.

The basic idea is to create a LUKS-encrypted partition which is used as an LVM Physical Volume.

The GRUB boot partition isn't encrypted, but everything else is.

These steps tested and working on 22.04 (jammy) and 20.04 (focal).

	from subprocess import run
	from tempfile import TemporaryDirectory


	if __name__ == '__main__':
	with TemporaryDirectory() as tempdir:
	run([
	'google-chrome',
	'--user-data-dir==' + tempdir,
	'--incognito',

	# use a certain pyenv version
	use_python() {
	if [ -n "$(which pyenv)" ]; then
	local pyversion=$1
	pyenv local ${pyversion}
	fi
	}

	layout_virtualenv() {
	local pyversion=$1

	#!/bin/bash

	set -eo pipefail

	DOMAIN=example.com
	ENTRY=examplehost
	#LINE_TOKEN=xxxxxx

	get_ip() {
	curl -s 'https://api.ipify.org'

	version: "3.9"

	services:
	jupyter:
	image: quay.io/jupyter/scipy-notebook
	ports:
	- "8888:8888"
	volumes:
	- ./notebooks:/home/jovyan/
	environment: