Johnny Miller millerjp

If anyone is interested in setting up their system to automatically (or manually) sign their git commits with their GPG key, here are the steps:

Generate and add your key to GitHub
$ git config --global commit.gpgsign true ([OPTIONAL] every commit will now be signed)
$ git config --global user.signingkey ABCDEF01 (where ABCDEF01 is the fingerprint of the key to use)
$ git config --global alias.logs "log --show-signature" (now available as $ git logs)
$ git config --global alias.cis "commit -S" (optional if global signing is false)
$ echo "Some content" >> example.txt
$ git add example.txt
$ git cis -m "This commit is signed by a GPG key." (regular commit will work if global signing is enabled)

OpenVPN .ovpn manipulation.

This is how you can take an OpenVPN .ovpn config file and extract the certificates/keys required to import the profile into NetworkManager.

Download the .ovpn file. Save it somewhere you can store it permanently (I use ~/.vpn).
Copy from between <ca> tags into ca.crt, remove <ca> tags.
Copy from between <cert> tags into client.crt, remove <cert> tags.
Copy from between <key> tags into client.key, remove <key> tags.
Copy from between <tls-auth> tags into ta.key, remove <tls-auth> tags.
Remove the line "key-direction 1"
Above "# -----BEGIN RSA SIGNATURE-----" insert the following lines.

Gradle tab completion script for Bash

A tab completion script that works for Bash. Relies on the BSD md5 command on Mac and md5sum on Linux, so as long as you have one of those two commands, this should work.

Usage

$ gradle [TAB]

	Section "InputClass"
	Identifier "Touchpad/TrackPoint"
	MatchProduct "PS/2 Generic Mouse"
	MatchDriver "evdev"
	Option "EmulateWheel" "1"
	Option "EmulateWheelButton" "2"
	Option "Emulate3Buttons" "0"
	Option "XAxisMapping" "6 7"
	Option "YAxisMapping" "4 5"
	EndSection

	# -- mode: ruby --
	# vi: set ft=ruby :

	# test setting a guest environment variable based on a host environment variable
	# if FOO_BAR is set locally, create command to add it to .profile in the guest

	env_var_cmd = ""
	if ENV['FOO_BAR']
	value = ENV['FOO_BAR']
	env_var_cmd = <<CMD

	#!/usr/bin/env python
	# Licensed to Tomaz Muraus under one or more
	# contributor license agreements. See the NOTICE file distributed with
	# this work for additional information regarding copyright ownership.
	# Tomaz muraus licenses this file to You under the Apache License, Version 2.0
	# (the "License"); you may not use this file except in compliance with
	# the License. You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#

	#!/usr/bin/env python
	# Licensed to Tomaz Muraus under one or more
	# contributor license agreements. See the NOTICE file distributed with
	# this work for additional information regarding copyright ownership.
	# Tomaz muraus licenses this file to You under the Apache License, Version 2.0
	# (the "License"); you may not use this file except in compliance with
	# the License. You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#

	wget http://jmxsh.googlecode.com/files/jmxsh-R5.jar
	java -jar jmxsh-R*.jar -h localhost -p 7199
	% [Hit Enter to go into Browse Mode]
	Select a domain: [Enter number for org.apache.cassandra.net]
	Select an mbean: [Enter number for org.apache.cassandra.net:type=Gossiper]
	Select an attribute or operation: [Enter number for unsafeAssassinateEndpoint(String p1)]
	p1 (String): [Enter IP address of problem node]

	It may also be possible to run it directly (untested):
	% jmx_invoke -m org.apache.cassandra.net:type=Gossiper unsafeAssassinateEndpoint <STALE-IP-ADDRESS>

	#!/bin/bash

	#/ jc -- jconsole via ssh proxy
	#/
	#/ Usage: jc [options] HOST JMX_PORT [PROXY_PORT=JMX_PORT] [JMX_HOST=HOST]
	#/
	#/ Starts a SOCKS proxy via ssh to connect to a
	#/ JVM running on a remote and protected machine.
	#/
	#/ Arguments:

	Using the nc command you can scan a port or a range of ports to verify whether a UDP port is open and able to receive traffic.

	This first command will scan all of the UDP ports from 1 to 65535 and add the results to a text file:

	$ nc -vnzu server.ip.address.here 1-65535 > udp-scan-results.txt

	This merely tells you that the UDP ports are open and receive traffic.

	Perhaps a more revealing test would be to actually transfer a file using UDP.