Ralph ralphotowo

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

Build docker image

$ cd /path/to/Dockerfile
$ sudo docker build .

View running processes

🎓 Canvas at SFU

Simon Fraser University is a mid-sized comprehensive university with three campuses in the Greater Vancouver area of British Columbia, Canada. We are a trimester school, with a Fall, Spring and Summer term. We have approximately 25,000 undergraduate FTEs.

SFU chose Canvas as its new LMS during a selection process in 2011/2012. We went into production in 2012. As of this writing, our enrollment counts in Canvas are:

Students: 25250
Teachers: 1070
TAs: 865

Setting up a SSL Cert from Comodo

I use Namecheap.com as a registrar, and they resale SSL Certs from a number of other companies, including Comodo.

These are the steps I went through to set up an SSL cert.

	FROM debian:jessie

	ENV RUBY_VERSION 1.8.7-p374
	ENV PATH /usr/local/rvm/gems/ruby-${RUBY_VERSION}/bin:/usr/local/rvm/gems/ruby-${RUBY_VERSION}@global/bin:/usr/local/rvm/rubies/ruby-${RUBY_VERSION}/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/rvm/bin

	RUN set -ex \
	&& apt-get update && apt-get install -y curl \
	&& gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 \
	&& curl -sSL https://get.rvm.io \| bash -s stable --ruby=${RUBY_VERSION}

	INSTALL JAVA
	$ sudo apt-get update && sudo apt-get install default-jre

	INSTALL ELASTIC SEARCH https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-repositories.html
	$ wget -qO - https://packages.elastic.co/GPG-KEY-elasticsearch \| sudo apt-key add -
	$ echo "deb https://packages.elastic.co/elasticsearch/2.x/debian stable main" \| sudo tee -a /etc/apt/sources.list.d/elasticsearch-2.x.list
	$ sudo apt-get update && sudo apt-get install elasticsearch
	$ sudo update-rc.d elasticsearch defaults 95 10
	$ sudo service elasticsearch restart
	$ sudo service elasticsearch status

	#!/bin/bash
	# This one-liner script plays a video in an infinite loop on a raspberry pi
	# for a video-art exhibition.
	# It was written for a video in portrait orientation so the video is rotated 270
	# to use up the whole screen (which was also rotated).
	# Charles Martin, July 2016

	omxplayer -o local --loop /home/pi/video.mp4 --orientation 270

	#!/bin/bash

	echo 'log-queries' > /etc/dnsmasq.conf
	service network-manager restart
	tail -f /var/log/syslog

	#!/bin/bash
	set -e

	JAVA_HOME=${1-text}
	[ $# -eq 0 ] && { echo "Usage: sudo $0 \$(/usr/libexec/java_home -v '1.8*')" ; exit 1; }

	KEYSTORE=$JAVA_HOME/jre/lib/security/cacerts

	wget https://letsencrypt.org/certs/letsencryptauthorityx1.der
	wget https://letsencrypt.org/certs/letsencryptauthorityx2.der