werty1st

#!upstart                                                                                                        
description "MyApp"
author      "MyApp by charlie"

env PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

respawn
start on runlevel [23]
stop on shutdown

werty1st

Install CouchDb and NodeJS

Prereqs

sudo apt-get update -y
sudo apt-get install git-core build-essential -y

NodeJS 0.10.x

werty1st

Three things to remember while configuring a couchapp to run as a web facing application. Below, I document the steps I took to deploy the example pages app from couchapp.org.

1. set the vhost in /etc/couchdb/local.ini.

   [vhosts] home.btbytes.com = /pages/_design/pages/_rewrite

2. add vhosts entry to couchdb by visiting configuration page in futon app and adding a new section:

werty1st

# Add this line to your software sources
deb http://debian.meebey.net/experimental/mono /

sudo apt-get update
# of course, apt-get remove mono-complete first...
sudo apt-get install mono-complete 

# I installed monodevelop from apt just to get all the prereqs
sudo apt-get install monodevelop

werty1st

Recently I was asked to generate PDF invoices for an online shop. I looked at various PHP PDF generators, but wasn't particularly impressed with any of them.

Then I found (via Stack Overflow) a command-line HTML-to-PDF convertor called wkhtmltopdf, which uses WebKit (the same layout engine as Safari and Google Chrome) and therefore is very accurate.

There is a class for PHP integration on the Wiki, but I found it overly complicated and it uses temp files which aren't necessary. This is the code I wrote instead.

I used Smarty for generating the HTML for the PDF, but you can use any template engine, or pure PHP if you prefer.

Note: I originally tried to install wkhtmltopdf from source, but it's much easier to use the static binary instead.

werty1st

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "your_email@youremail.com"

werty1st

Goal of this document is to describe how to setup a vpn tunnel with two pfSense boxes
having the same LAN subnet, for the purpose of this doc we'll use 192.168.1.1/24 on
both firewalls LAN interfaces

We have to make some dummy networks here to NAT to so as far as Site A will be concerned,
site B will be 192.168.2.0/24, and as far as Site B is concerened site A will be 192.168.3.0/24

SiteA (LAN 192.168.1.1)
OpenVPN Server:
Standard Setup and we'll use 10.0.1.0/24 as the Tunnel Network (I can elaborate here later)

werty1st

# Upstart file at /etc/init/couchdb.conf
# CouchDB

start on runlevel [2345]
stop on runlevel [06]

pre-start script
    chown -R couchdb /usr/local/etc/couchdb
    chown -R couchdb /usr/local/lib/couchdb
    chown -R couchdb /usr/local/var/log/couchdb

werty1st

object CheckCommand "check_wmi" {
  import "plugin-check-command"
  command = [ PluginDir + "/check_wmi_plus.pl" ]

  arguments = {
    "--inidir" = "$wmi_inidir$"
    "-H" = "$host.name$"
    "-A" = "$wmi_authfile_path$"
    "-m" = "$check_mode$"
    "-s" = "$wmi_submode$"

werty1st

#!/bin/bash
# bash generate random alphanumeric string
#

# bash generate random 32 character alphanumeric string (upper and lowercase) and 
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)

# bash generate random 32 character alphanumeric string (lowercase only)
cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1