Daniel Luna dcluna

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Every so often I have to restore my gpg keys and I'm never sure how best to do it. So, I've spent some time playing around with the various ways to export/import (backup/restore) keys.

Method 1

Backup the public and secret keyrings and trust database

cp ~/.gnupg/pubring.gpg /path/to/backups/
cp ~/.gnupg/secring.gpg /path/to/backups/
cp ~/.gnupg/trustdb.gpg /path/to/backups/

or, instead of backing up trustdb...

Don't use VPN services.

No, seriously, don't. You're probably reading this because you've asked what VPN service to use, and this is the answer.

Note: The content in this post does not apply to using VPN for their intended purpose; that is, as a virtual private (internal) network. It only applies to using it as a glorified proxy, which is what every third-party "VPN provider" does.

A Russian translation of this article can be found here, contributed by Timur Demin. There's also this article about VPN services, which is honestly better written (and has more cat pictures!) than my article.

Why not?

Standalone Spark 2.0.0 with s3

###Tested with:

Spark 2.0.0 pre-built for Hadoop 2.7
Mac OS X 10.11
Python 3.5.2

Goal

Use s3 within pyspark with minimal hassle.

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

	---
	# ^^^ YAML documents must begin with the document separator "---"
	#
	#### Example docblock, I like to put a descriptive comment at the top of my
	#### playbooks.
	#
	# Overview: Playbook to bootstrap a new host for configuration management.
	# Applies to: production
	# Description:
	# Ensures that a host is configured for management with Ansible.

	use_debug false
	use_bpm 130

	# Our mixer!
	master = (ramp *range(0, 1, 0.01))
	kick_volume = 1
	bass_volume = 1
	revbass_volume = 1
	snare_volume = 0.5
	hats_volume = 0.5

	#!/bin/bash

	set -e

	SLACK_WEBHOOK_URL=
	DEFAULT_EMOJI=:slack:
	CHANNEL=${1:-#general}
	AUTHOR="Some user"

	tmate -S /tmp/tmate.sock new-session -d && tmate -S /tmp/tmate.sock wait tmate-ready

	# Here's a contrived example of a LEFT JOIN using ARel. This is an example of
	# the mechanics, not a real-world use case.

	# NOTE: In the gist comments, @ozydingo linked their general-purpose ActiveRecord
	# extension that works for any named association. That's what I really wanted!
	# Go use that! Go: https://gist.github.com/ozydingo/70de96ad57ab69003446

	# == DEFINITIONS
	# - A Taxi is a car for hire. A taxi has_many :passengers.
	# - A Passenger records one person riding in one taxi one time. It belongs_to :taxi.

	# extracted from http//www.naturalearthdata.com/download/110m/cultural/ne_110m_admin_0_countries.zip
	# under public domain terms

	country_bounding_boxes = {
	'AF': ('Afghanistan', (60.5284298033, 29.318572496, 75.1580277851, 38.4862816432)),
	'AO': ('Angola', (11.6400960629, -17.9306364885, 24.0799052263, -4.43802336998)),
	'AL': ('Albania', (19.3044861183, 39.624997667, 21.0200403175, 42.6882473822)),
	'AE': ('United Arab Emirates', (51.5795186705, 22.4969475367, 56.3968473651, 26.055464179)),
	'AR': ('Argentina', (-73.4154357571, -55.25, -53.628348965, -21.8323104794)),
	'AM': ('Armenia', (43.5827458026, 38.7412014837, 46.5057198423, 41.2481285671)),