Syed Hassan Raza shrhawk-entertainer

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

A very simple example of using a map of channels for pub/sub in go.

To run it go here http://play.golang.org/p/eXwppMgHR3

mkdir -p /usr/local/etc/nginx/sites-{enabled,available}
cd /usr/local/etc/nginx/sites-enabled
ln -s ../sites-available/default.conf
ln -s ../sites-available/default-ssl.conf

File locations:

nginx.conf to /usr/local/etc/nginx/
default.conf and default-ssl.conf to /usr/local/etc/nginx/sites-available
homebrew.mxcl.nginx.plist to /Library/LaunchDaemons/

Branching

Quick Legend

Description, Instructions, Notes

Instance	Branch

	<?php
	/**
	* Add the product's short description (excerpt) to the WooCommerce shop/category pages. The description displays after the product's name, but before the product's price.
	*
	* Ref: https://gist.github.com/om4james/9883140
	*
	* Put this snippet into a child theme's functions.php file
	*/
	function woocommerce_after_shop_loop_item_title_short_description() {
	global $product;

	// from http://scratch99.com/web-development/javascript/convert-bytes-to-mb-kb/
	function bytesToSize(bytes) {
	var sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];
	if (bytes == 0) return 'n/a';
	var i = parseInt(Math.floor(Math.log(bytes) / Math.log(1024)));
	if (i == 0) return bytes + ' ' + sizes[i];
	return (bytes / Math.pow(1024, i)).toFixed(1) + ' ' + sizes[i];
	};

	#!/usr/bin/env python

	import string
	import random

	def password_generator(size=8, chars=string.ascii_letters + string.digits):
	"""
	Returns a string of random characters, useful in generating temporary
	passwords for automated password resets.

	# Assuming an Ubuntu Docker image
	$ docker run -it <image> /bin/bash