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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

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Setup testnet Ethereum network with Docker

Ethereum is a decentralized platform that runs smart contracts: applications that run exactly as programmed without any possibility of downtime, censorship, fraud or third party interference.

This is step-by-step guide, how to setup testnet Ethereum network.

We'll setup ethereum testnet node in the docker container and write ruby json-rpc client. The difference between ethereum(Frontier) and testnet ethereum(Ropsten) networks is that the testnet used for development. The genesis block on the testnet was set with a very low difficulty so anyone can do minning. The coins mained in the testnet have no values. You can request some coins on the facuet or trying to mine it.

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Referencing this discussion on how to deny loopback access, create the opposite which is to only allow access from localhost. The goal is to only allow access after the client has connected with SSH using the port tunneling option.

Add new filter rules to block VNC (port 5900) access when not connected via SSH with port forwarding. Plus add blocks to file sharing (SMB and AFP). Just in case I am running a web server block that too, or any other ports listed in this link.

# pfctl is the packet filter firewall for modern OS X. 
# For more info -> man pfctl
# flush to the default

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Setting Up Clojure on OS X

I spent a lot of time trying to find a pretty optimal (for me) setup for Clojure… at the same time I was trying to dive in and learn it. This is never optimal; you shouldn't be fighting the environment while trying to learn something.

I feel like I went through a lot of pain searching Google, StackOverflow, blogs, and other sites for random tidbits of information and instructions.

This is a comprehensive "what I learned and what I ended up doing" that will hopefully be of use to others and act as a journal for myself if I ever have to do it again. I want to be very step-by-step and explain what's happening (and why) at each step.

I appreciate the effort you've put into documenting this, but there are a number of inaccuracies here that need to be addressed. We get

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'use strict';

// The purpose of this example is to show
// how you can block the event loop with JavaScript.
// There is 3 routes
// / respond with Hello, World text
// /block uses JavaScript while for 5 seconds
// /non-block uses setTimeout for 5 seconds

// Do the following

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>PayloadContent</key>
	<array>
		<dict>
			<key>IKEv2</key>
			<dict>
				<key>AuthName</key>

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UPDATE a fork of this gist has been used as a starting point for a community-maintained "awesome" list: machine-learning-with-ruby Please look here for the most up-to-date info!

Resources for Machine Learning in Ruby

Gems

• liblinear-ruby: Ruby interface to LIBLINEAR using SWIG

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UPDATE a fork of this gist has been used as a starting point for a community-maintained "awesome" list: machine-learning-with-ruby Please look here for the most up-to-date info!

Resources for Machine Learning in Ruby

Gems

• liblinear-ruby: Ruby interface to LIBLINEAR using SWIG

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global
	log /dev/log	local0
	log /dev/log	local1 notice
	chroot /var/lib/haproxy
	stats socket /run/haproxy/admin.sock mode 660 level admin
	stats timeout 30s
	user haproxy
	group haproxy
	daemon

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Managing OpenStack instances with Ansible through an SSH bastion host

I'm be using DreamCompute as my OpenStack provider, but there are dozens to choose from. I assume you already have Ansible and the OpenStack CLI tools installed.

Motivation

With the proliferation of OpenStack public clouds offering free and intro tiers, it's becoming very easy to effectively run a simple application for free or nearly free. Also with the emergence of Ansible, you don't need to learn and deploy complicated tools to do configuration management.