xikaos

   alarm: slave_down
      on: system.cpu
    calc: $now - $last_collected_t
   units: seconds ago
   every: 10s
    warn: $this > (($status >= $WARNING)  ? ($update_every) : ( 5 * $update_every))
    crit: $this > (($status == $CRITICAL) ? ($update_every) : (60 * $update_every))
    info: number of seconds since the last successful data collection
      to: sysadmin

xikaos

# Entrar no servidor e fora da pasta do projeto

$ git init --bare repo

Criar hooks post-receive

$ cd repo/hooks
$ nano post-receive

## Adicionar no arquivo

xikaos

#ifndef __dbg_h__
#define __dbg_h__

#include <stdio.h>
#include <errno.h>
#include <string.h>

#ifdef NDEBUG
#define debug(M, ...)
#else

xikaos

function filter_by_value ($array, $index, $value){ 
  if(is_array($array) && count($array)>0)  
  { 
    foreach(array_keys($array) as $key){ 
      $temp[$key] = $array[$key][$index]; 
        if ($temp[$key] == $value){ 
          $newarray[$key] = $array[$key]; 
        } 

xikaos

#!/bin/bash

#Wget Phantomjs 
wget https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-2.1.1-linux-x86_64.tar.bz2

#Extract files
tar -xf phantomjs-2.1.1-linux-x86_64.tar.bz2

#Change to dir
cd phantomjs-2.1.1-linux-x86_64

xikaos

~// WARNING: The command DOES NOT WORK if you don't have root access to yout network device. Prepend sudo if you are not root. \\~

Use TCPDUMP to Monitor HTTP Traffic
1. To monitor HTTP traffic including request and response headers and message body:

tcpdump -A -s 0 'tcp port 80 and (((ip[2:2] - ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0)'

2. To monitor HTTP traffic including request and response headers and message body from a particular source:

tcpdump -A -s 0 'src example.com and tcp port 80 and (((ip[2:2] - ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0)'

xikaos

function varpost($endpoint, $data){
  $ch = curl_init($endpoint);
  curl_setopt_array($ch, array(
    CURLOPT_POST => TRUE,
    CURLOPT_RETURNTRANSFER => TRUE,
    CURLOPT_HTTPHEADER => array(
      'Content-Type: application/json'
    ),
    CURLOPT_POSTFIELDS => json_encode($data)
  ));

xikaos

du -sh dir/ | sort -hr | head -n10

xikaos

defmodule R do
  def reload! do
    Mix.Task.reenable "compile.elixir"
    Application.stop(Mix.Project.config[:app])
    Mix.Task.run "compile.elixir"
    Application.start(Mix.Project.config[:app], :permanent)
  end
end

xikaos

defmodule Palindromes do
  def run do
    ["amor", "roma", "phoenix", "mora", "elixir"]
    |> Enum.group_by(&canonicalize/1)
    |> IO.inspect
  end

  defp canonicalize(word) do
    word
    |> String.graphemes