David Greenwald davidegreenwald

some tools for diagrams in software documentation

Diagrams For Documentation

Obvious Choices

ASCII

###Let's install Vagrant###

Install VirtualBox: https://www.virtualbox.org/
Install Vagrant: http://vagrantup.com/

###Select a Vagrant Box from https://vagrantcloud.com###

#add it to your list of boxes
vagrant box add hashicorp/precise32
#create a new folder for your project &amp; init vagrant

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

Nginx FastCGI response buffer sizes

By default when Nginx starts receiving a response from a FastCGI backend (such as PHP-FPM) it will buffer the response in memory before delivering it to the client. Any response larger than the set buffer size is saved to a temporary file on disk.

This process is outlined at the Nginx ngx_http_fastcgi_module page manual page.

Introduction
Determine actual FastCGI response sizes
Setting the buffer size
Verifying results

WordPress database clean up queries

Orphan rows
Other

Nginx FastCGI cache

Example /etc/nginx/nginx.conf using FastCGI (e.g. to PHP-FPM) with FastCGI cache enabled. This will capture returned data and persist it to a disk based cache store for a configurable amount of time, great for robust full page caching.

Will need to create a directory to hold cache files, for the example given here that would be:

$ sudo mkdir -p /var/cache/nginxfastcgi
$ chown www-data: /var/cache/nginxfastcgi

	# Hello, and welcome to makefile basics.
	#
	# You will learn why `make` is so great, and why, despite its "weird" syntax,
	# it is actually a highly expressive, efficient, and powerful way to build
	# programs.
	#
	# Once you're done here, go to
	# http://www.gnu.org/software/make/manual/make.html
	# to learn SOOOO much more.

	# Update packages

	apt-get update
	apt-get upgrade -y

	# Add A Few PPAs To Stay Current

	apt-get install -y software-properties-common

	apt-add-repository ppa:nginx/stable -y

	upstream phpfpm {
	server unix:/var/run/php5-fpm.sock;
	}

	upstream hhvm {
	server unix:/var/run/hhvm/hhvm.sock;
	}

	# SSL
	ssl_protocols TLSv1 TLSv1.1 TLSv1.2;

	#!/usr/bin/env bash

	# Install Some PPAs
	apt-get install -y software-properties-common
	apt-add-repository ppa:nginx/stable -y
	apt-add-repository ppa:ondrej/php5 -y

	# Update Package Lists
	apt-get update