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Setting up XEN on a Hetzner Dedicated Server

Author: Michael van Rooijen (@mrrooijen)

DISCLAIMER: I am a programmer, not a sysadmin in my day-to-day life. I provide this guide simply as a self-reference, and as a way to contribute to the community of developers. The main motivation for writing this guide is because of the lack of properly written guides/tutorials. They were either out-dated, inaccurate, in a non-English language or simply too vague to understand (at least for me, as a programmer and not a sysadmin).

I hope this guide helps getting you up and running with your own collection of VPS's on your own Dedicated Server over at Hetzner.de.

Requirements:

	# This build script will build Ruby 2.0.0-p247. You will need su to
	# root or sudo as required.

	# This build tested against Debian 7.0 64-bit arch, installed from net-inst image.

	# These aren't specifically Ruby deps; more for building software in general
	# (you probably already have them)
	apt-get install -y build-essential autoconf

	# These deps will support common libraries like yaml and give you the best irb experience.

	It is a rite of passage to post one's successful build instructions for OpenCV on a Mac
	after you've tried all the other conflicting instructions out there and still failed.
	brew failed for me (was this because I could never get a happy brew doctor situation?
	I'll never know). macports? nope. build-from-source recipes? I didn't find one that
	worked for me.

	Here's what did work to build OpenCV 2.4.5 from the distribution tarball using cmake,
	on Mac OSX 10.8.4, linked to an anaconda installation rather than the system python.
	It is a mashup of various bits of advice out there. If you're already comfortable with
	build/install from source, all you need to read is the cmake invocation in step 3 and

	BRANCH=$(git symbolic-ref HEAD \| sed -e 's,./\(.\),\1,')

	git co master;
	git pull --rebase;
	git co $BRANCH;
	git rebase master;
	git push --force origin $BRANCH;

	0 - Read http://blog.databigbang.com/running-your-own-anonymous-rotating-proxies/
	1 - Install monit, haproxy, tor and delegated.
	2 - Setup your environment in the setup.rb file
	3 - Just run > ruby setup.rb
	4 - ...........
	5 - PROFIT! > http://www.southparkstudios.com/clips/151040/the-underpants-business

	#!/bin/bash
	# herein we backup our indexes! this script should run at like 6pm or something, after logstash
	# rotates to a new ES index and theres no new data coming in to the old one. we grab metadatas,
	# compress the data files, create a restore script, and push it all up to S3.
	TODAY=`date +"%Y.%m.%d"`
	INDEXNAME="logstash-$TODAY" # this had better match the index name in ES
	INDEXDIR="/usr/local/elasticsearch/data/logstash/nodes/0/indices/"
	BACKUPCMD="/usr/local/backupTools/s3cmd --config=/usr/local/backupTools/s3cfg put"
	BACKUPDIR="/mnt/es-backups/"
	YEARMONTH=`date +"%Y-%m"`

	# to generate your dhparam.pem file, run in the terminal
	openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048