Rafael Turk rturk

Removal of McAfee from OSX

Note: This was written in 2015, it may be out of date now.

There are a lot of commands here which I use sudo if you don't know what you're doing with sudo, especially where I rm you can severely screw up your system.

There are many reasons which you would want to remove a piece of software such as McAfee, such as not wanting it to hammer your CPU during work hours which seems like primetime for a virus scan.

I intend this to be a living document, I have included suggestions from peoples' replies.

Validação para cartão de crédito.

Bin e padrões para validação de cartão de crédito.

Bandeira	Comeca com	Máximo de número	Máximo de número cvc
Visa	4	13,16	3
Mastercard	5	16	3
Diners	301,305,36,38	14,16	3

Installing Cassandra on Mac OS X

Install Homebrew

Homebrew is a great little package manager for OS X. If you haven't already, installing it is pretty easy:

ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

AWS ELB with Node.js and WebSockets

This assumes that:

You are using Nginx.
You want to accept incoming connections on port 80.
Your Node.js app is listening on port 3000.
You want to be able to connect to your Node.js instance directly as well as via the load balancer.

####1. Create load balancer

ABOUT

about:config settings to harden the Firefox browser. Privacy and performance enhancements.
To change these settings type 'about:config' in the url bar. Then search the setting you would like to change and modify the value. Some settings may break certain websites from functioning and rendering normally. Some settings may also make firefox unstable. I am not liable for any damages/loss of data.

Not all these changes are necessary and will be dependent upon your usage and hardware. Do some research on settings if you don't understand what they do. These settings are best combined with your standard privacy extensions (~~HTTPS Everywhere~~ No longer required: Enable HTTPS-Only Mode, NoScript/Request Policy, uBlock origin, agent spoofing, ~~Privacy Badger~~ etc), and all plugins set to "Ask To Activate".

	// === Arrays

	var [a, b] = [1, 2];
	console.log(a, b);
	//=> 1 2


	// Use from functions, only select from pattern
	var foo = () => [1, 2, 3];

	# post_loc.txt contains the json you want to post
	# -p means to POST it
	# -H adds an Auth header (could be Basic or Token)
	# -T sets the Content-Type
	# -c is concurrent clients
	# -n is the number of requests to run in the test

	ab -p post_loc.txt -T application/json -H 'Authorization: Token abcd1234' -c 10 -n 2000 http://example.com/api/v1/locations/

	var AWS = require('aws-sdk');

	AWS.config.update({
	accessKeyId: '{AWS_KEY}',
	secretAccessKey: '{AWS_SECRET}',
	region: '{SNS_REGION}'
	});

	var sns = new AWS.SNS();

	console.log('Loading function');

	const https = require('https');
	const url = require('url');
	// to get the slack hook url, go into slack admin and create a new "Incoming Webhook" integration
	const slack_url = 'https://hooks.slack.com/services/...';
	const slack_req_opts = url.parse(slack_url);
	slack_req_opts.method = 'POST';
	slack_req_opts.headers = {'Content-Type': 'application/json'};

	# Adapted from https://github.com/doobeh/Flask-S3-Uploader
	# Improved to store the data on the local server and process
	# the upload via a celery task queue

	from uuid import uuid4
	import boto
	import os.path
	from flask import current_app as app
	from werkzeug.utils import secure_filename
	from .. import celery