Mark Keele thekeele

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

#Simple MongoDB Security Tutorial

###1 - Start mongod without any "security option"

$ mongod --port 27017

Remove MySQL completely

Open the Terminal
Use mysqldump to backup your databases
Check for MySQL processes with: ps -ax | grep mysql
Stop and kill any MySQL processes
Analyze MySQL on HomeBrew:
```
brew remove mysql
```

Pushing to Multiple Git Repos

If a project has to have multiple git repos (e.g. Bitbucket and Github) then it's better that they remain in sync.

Usually this would involve pushing each branch to each repo in turn, but actually Git allows pushing to multiple repos in one go.

If in doubt about what git is doing when you run these commands, just

Moved to Shopify/graphql-design-tutorial

	#!/usr/bin/env sh

	# bitdump.sh
	#
	# captures Bitcoin network traffic

	SELF=`basename $0`

	if [[ $1 = "" ]]; then
	DEFAULT="en1"

	%#!/usr/bin/env escript
	%% -- erlang --
	%%! -sasl errlog_type error

	%%% Dependencies: hackney, erlang-oauth, jsx
	%%% https://dev.twitter.com/docs/auth/authorizing-request
	%%% https://dev.twitter.com/docs/api/1.1/post/statuses/filter

	-module(twitter).
	-author(gdamjan).

	require "net/http"

	def start_server
	# Remove the X to enable the parameters for tuning.
	# These are the default values as of Ruby 2.2.0.
	@child = spawn(<<-EOC.split.join(" "))
	XRUBY_GC_HEAP_FREE_SLOTS=4096
	XRUBY_GC_HEAP_INIT_SLOTS=10000
	XRUBY_GC_HEAP_GROWTH_FACTOR=1.8
	XRUBY_GC_HEAP_GROWTH_MAX_SLOTS=0

	defmodule GCM.PushCollector do
	use GenStage

	# Client

	def push(pid, push_requests) do
	GenServer.cast(pid, {:push, push_requests})
	end

	# Server

	defmodule GCM.Pusher do
	use GenStage
	# The maximum number of requests Firebase allows at once per XMPP connection
	@max_demand 100

	defstruct [
	:producer,
	:producer_from,
	:fcm_conn_pid,
	:pending_requests,