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public static void main(String[] args) throws IOException {

        // Setup firefox binary to start in Xvfb        
        String Xport = System.getProperty(
                "lmportal.xvfb.id", ":1");
        final File firefoxPath = new File(System.getProperty(
                "lmportal.deploy.firefox.path", "/usr/bin/firefox"));
        FirefoxBinary firefoxBinary = new FirefoxBinary(firefoxPath);
        firefoxBinary.setEnvironmentProperty("DISPLAY", Xport);

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Setup modern.ie vagrant boxes

Since modern.ie released vagrant boxes, it' no longer necessary to manually import the ova file to virtualbox, as mentioned here.

However, the guys at modern.ie didn't configured the box to work with WinRM. This how-to addresses that, presenting steps to proper repackage these boxes, adding WinRM support. Additionally configures chocolatey package manager and puppet provisioner.

Pre-requisites

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D3’s default path interpolation is the same as its string interpolation: it finds numbers embedded in strings, and interpolates those numbers. So, the default behavior when interpolating two paths is like this:

M x0, y0 L x1, y1 L x2, y2 L x3, y3 
   ↓   ↓    ↓   ↓    ↓   ↓    ↓   ↓
M x0, y1 L x1, y2 L x2, y3 L x3, y4 

For example, the first point ⟨x0,y0⟩ is interpolated to ⟨x0,y1⟩. Since x0 is the same, all you see are the y-values changing (see example)—you don't see the path slide to the left as intended.

What you want to happen here is something like this:

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upstream unicorn {
  server unix:/tmp/unicorn.portal.sock fail_timeout=0;
}

server {
  listen 80 default deferred;
  server_name secure.example.com;
  root /home/user/www/secure.example.com/current/public;

  location ^~ /assets/ {

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location xxxx {
  proxy_pass        http://localhost:9000;
  proxy_buffering off;
  proxy_cache off;
  proxy_redirect    off;
  proxy_set_header Connection '';
  proxy_http_version 1.1;
  chunked_transfer_encoding off;
  proxy_set_header  Host $host;
  proxy_set_header  X-Real-IP  $remote_addr;

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from numpy import loadtxt, zeros, ones, array, linspace, logspace, mean, std, arange
from mpl_toolkits.mplot3d import Axes3D
import matplotlib.pyplot as plt
from pylab import plot, show, xlabel, ylabel

#Evaluate the linear regression

def feature_normalize(X):
    '''
    Returns a normalized version of X where

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tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

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import java.io.IOException;
import java.net.URL;
import java.util.Date;
import java.util.List;
import java.util.logging.Level;
import org.json.*;

import org.openqa.selenium.*;
import org.openqa.selenium.chrome.*;
import org.openqa.selenium.logging.*;

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// How to connect 5 publishers with 5 subscribers 
// over TCP using ZeroMQ's XPUB/XSUB proxy.

// sub (connect) 
//   <-8701-> 
// (bind) xpub <---> xsub (bind) 
//   <-8700-> 
// (connect) pub

var zmq = require('zmq');

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Backup MySQL to Amazon S3

This is a simple way to backup your MySQL tables to Amazon S3 for a nightly backup - this is all to be done on your server :-)

Sister Document - Restore MySQL from Amazon S3 - read that next

1 - Install s3cmd

this is for Centos 5.6, see http://s3tools.org/repositories for other systems like ubuntu etc