beherca

var dgram = require('dgram'); // dgram is UDP

// Listen for responses
function listen(port) {
	var server = dgram.createSocket("udp4");

	server.on("message", function (msg, rinfo) {
		console.log("server got: " + msg + " from " + rinfo.address + ":" + rinfo.port);
	});

beherca

anon       true, if the space may be omitted in anonymous function declarations
bitwise    true, if bitwise operators should be allowed
browser    true, if the standard browser globals should be predefined
cap        true, if upper case HTML should be allowed
continue   true, if the continuation statement should be tolerated
css        true, if CSS workarounds should be tolerated
debug      true, if debugger statements should be allowed
devel      true, if logging should be allowed (console, alert, etc.)
eqeq       true, if == should be allowed
es5        true, if ES5 syntax should be allowed

beherca

# Load balancer configuration
upstream exampleApp {
    # Directs to the process with least number of connections.
    least_conn;

    # One failed response will take a server out of circulation for 20 seconds.
    server 127.0.0.1:10080 fail_timeout=20s;
    #server 127.0.0.1:10081 fail_timeout=20s;
    #server 127.0.0.1:10082 fail_timeout=20s;
    #server 127.0.0.1:10083 fail_timeout=20s;

beherca

{
  "vars": {
    "@gray-base": "#000",
    "@gray-darker": "lighten(@gray-base, 13.5%)",
    "@gray-dark": "lighten(@gray-base, 20%)",
    "@gray": "lighten(@gray-base, 33.5%)",
    "@gray-light": "lighten(@gray-base, 46.7%)",
    "@gray-lighter": "lighten(@gray-base, 93.5%)",
    "@brand-primary": "darken(#428bca, 6.5%)",
    "@brand-success": "#5cb85c",

beherca

Latency Comparison Numbers
--------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

beherca

Client-side SSL

For excessively paranoid client authentication.

Using self-signed certificate.

Create a Certificate Authority root (which represents this server)

Organization & Common Name: Some human identifier for this server CA.

openssl genrsa -des3 -out ca.key 4096
openssl req -new -x509 -days 365 -key ca.key -out ca.crt

beherca

#!/bin/sh -e

#Define our target device
export TARGET_ARCH="-march=armv7-a"
export TARGET_TUNE="-mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp -mthumb-interwork -mno-thumb"

#Define the cross compilators on your system
export AR="arm-linux-gnueabi-ar"
export CC="arm-linux-gnueabi-gcc"
export CXX="arm-linux-gnueabi-g++"

beherca

<?php

namespace Zalas\Test;

use Doctrine\Common\Persistence\ManagerRegistry;
use Doctrine\Common\Persistence\ObjectManager;
use Doctrine\ORM\Tools\SchemaTool;

trait Doctrine
{

beherca

{
  "title": "collectd-post",
  "services": {
    "query": {
      "list": {
        "0": {
          "query": "plugin: \"cpu\" AND plugin_instance: \"0\"",
          "alias": "cpu1",
          "color": "#7EB26D",
          "id": 0,

beherca

# Find Largest File, http://www.cyberciti.biz/faq/find-large-files-linux/
sudo du -a | sort -nr | head
sudo du -sx /* 2>/dev/null | sort -n


#Delete file older than 10 days 
# find /usr/backup/jira -type f -mtime +10 -exec rm {} \;