YURII D. dejurin

Installing Python 2.7 on Centos 6.5

Centos 6.* comes with Python 2.6, but we can't just replace it with v2.7 because it's used by the OS internally (apparently) so you will need to install v2.7 (or 3.x, for that matter) along with it. Fortunately, CentOS made this quite painless with their Software Collections Repository

sudo yum update # update yum
sudo yum install centos-release-scl # install SCL 
sudo yum install python27 # install Python 2.7

To use it, you essentially spawn another shell (or script) while enabling the newer version of Python:

Vanilla JavaScript Quick Reference / Cheatsheet

Just migrated it from Codepen.io to markdown. Credit goes to David Conner.

Working with DOM	Working with JS	Working With Functions
Accessing Dom Elements	Add/Remove Array Item	Add Default Arguments to Function
Grab Children/Parent Node(s)	Add/Remove Object Properties	Throttle/Debounce Functions
Create DOM Elements	Conditionals

Moved to git-repository: https://github.com/denji/awesome-http-benchmark

Tools

Located in alphabetical order (not prefer)

ab – slow and single threaded, written in C
apib – most of the features of ApacheBench (ab), also designed as a more modern replacement, written in C
baloo – Expressive end-to-end HTTP API testing made easy, written in Go (golang)
bombardier – Fast crossplatform HTTP benchmarking tool, written in Go (golang)

Copied from http://code.lancepollard.com/complete-list-of-html-meta-tags/

Basic HTML Meta Tags

<meta name="keywords" content="your, tags"/>
<meta name="description" content="150 words"/>
<meta name="subject" content="your website's subject">
<meta name="copyright"content="company name">
<meta name="language" content="ES">

	<!DOCTYPE html>

	<html>
	<head>
	<meta http-equiv="Content-type" content="text/html; charset=utf-8">
	<title>Pinger test</title>
	<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.min.js" type="text/javascript" charset="utf-8"></script>
	</head>
	<body>

	#!/bin/bash

	# According to:
	# How To Set Up Python 2.7.6 and 3.3.3 on CentOS 6.4
	# https://www.digitalocean.com/community/tutorials/how-to-set-up-python-2-7-6-and-3-3-3-on-centos-6-4
	yum -y update
	yum groupinstall -y 'development tools'
	yum install -y zlib-dev openssl-devel sqlite-devel bzip2-devel
	yum install xz-libs
	wget http://www.python.org/ftp/python/2.7.10/Python-2.7.10.tar.xz

	for i in 50 100 250 500; do echo "String length: $i"; php strcmpbench.php $i; php strcasecmpbench.php $i; echo "\n"; done

	# Example run:
	#
	# String length: 50
	# ************************
	# * strcomp + strtolower *
	# ************************
	# Time: 0.000082
	# Memory: 1456

	http {

	map $http_user_agent $limit_bots {
	default '';
	~*(google\|bing\|yandex\|msnbot) $binary_remote_addr;
	}

	limit_req_zone $limit_bots zone=bots:10m rate=1r/m;

	server {

	/*
	No jQuery necessary.
	Thanks to Dan's StackOverflow answer for this:
	http://stackoverflow.com/questions/123999/how-to-tell-if-a-dom-element-is-visible-in-the-current-viewport
	*/

	function isElementInViewport(el) {
	var rect = el.getBoundingClientRect();
	return (
	rect.top >= 0 &&

	# to generate your dhparam.pem file, run in the terminal
	openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048