ziyunli

How to setup Let's Encrypt for Nginx on Ubuntu 16.04 (including IPv6, HTTP/2 and A+ SLL rating)

There are two modes when you don't want Certbot to edit your configuration:

• Standalone: replaces the webserver to respond to ACME challenges
• Webroot: needs your webserver to serve challenges from a known folder.

Webroot is better because it doesn't need to replace Nginx (to bind to port 80) to renew certificates.

In the following, we're setting up mydomain.com to be served from /var/www/mydomain, and challenges will be served from /var/www/letsencrypt.

ziyunli

# /etc/nginx/sites-available/default
server {
	listen 80;
  	server_name <domain name>;
	return 301 https://<domain name>$request_uri;
}

server {
	listen 80;
	server_name www.<domain name>;

ziyunli

Git Cheat Sheet

Visit my blog or connect with me on Twitter

Commands

Getting Started

git init

or

ziyunli

#System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

##Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

ziyunli

Keybase proof

I hereby claim:

• I am ziyunli on github.
• I am ziyunli (https://keybase.io/ziyunli) on keybase.
• I have a public key ASC45PrZAO0zlgn9CASDEl8c6UzW5p3TQzhEvbtH_z0Mcwo

To claim this, I am signing this object:

ziyunli

#! /usr/bin/python
#
# Church numerals in Python.
# See http://en.wikipedia.org/wiki/Church_encoding
#
# Vivek Haldar <vh@vivekhaldar.com>
#
# https://gist.github.com/2438498

zero = lambda f: lambda x: x