edupr91

# Start the old vagrant
$ vagrant init centos-6.3
$ vagrant up

# You should see a message like:
#  [default] The guest additions on this VM do not match the install version of
#  VirtualBox! This may cause things such as forwarded ports, shared
#  folders, and more to not work properly. If any of those things fail on
#  this machine, please update the guest additions and repackage the
#  box.

edupr91

#!/usr/bin/env ruby
#
# Nagios plugin to monitor Redis sentinel
#
# Checks general connectivity to a Redis sentinel server and will go critical
# for any of the following conditions:
#   * Inability to connect to the sentinel server
#   * Sentinel reports it isn't monitoring any masters
#   * Sentinel has entered TILT mode
#

edupr91

#!/bin/bash
# Nagios script that raises an critical after X grace period of time.
# curl -x my.super.lan:223 http://foo.bar -s --connect-timeout 10

print_usage() {
  echo -n '
 Options:
  -u, --url             URL to check
  -x, --proxy           Proxy server 
  -p, --port            Proxy port

edupr91

#!/bin/bash
set -e

# Before using this script check that you have configured your credentials and
# you are logged in to the right aws account.
# try running `aws configure list` to list all your configuration data

# You will also need to install cli53. https://github.com/barnybug/cli53
# Download the latest and move it to your local bin folder https://github.com/barnybug/cli53/releases/latest
# mv cli53-linux-amd64 ~/.local/bin/cli53

edupr91

How to create a self-signed SSL Certificate with SubjectAltName(SAN)

After Chrome 58, self-signed certificate without SAN is not valid anymore.

Step 1: Generate a Private Key

openssl genrsa -des3 -out example.com.key 2048

Step 2: Generate a CSR (Certificate Signing Request)