Installing Let's Encrypt FREE SSL Certificate in Ubuntu 14.04 LTS

I have Let's Encrypt a few times. It has always work well and pretty easy to do. I want to write this blog to explain all the process necessary at a glance with pictures for anyone who wants to do this using Ubuntu 14.04 LTS.

I put my lets_encrypt directory and script inside this directory:

/data_local/cron_shell/lets_encrypt

The whole process takes about 10 min for 1st timer, and only about 2 min if you are already familiar with all the steps.

But yours can be anywhere, your home directory: (home_dir)/lets_encrypt would be a good choice. 


STEP 1 - CREATE LETS_ENCRYPT DIRECTORY and Change Directory to there

mkdir -p /data_local/app/cron_shell/lets_encrypt

cd /data_local/app/cron_shell/lets_encrypt

STEP 2 - DOWNLOAD and Set as Executable

wget https://dl.eff.org/certbot-auto

chmod a+x certbot-auto

STEP 3 - CREATE GET CERTIFICATE SCRIPT (optional)

(I said this is script is optional because you can simply just type and execute this single line into your command line. I like to have this script file available so that it can remind me how to do the installation again in the future)

nano get_cert.sh

The content of get_cert.sh looks like this (you must change the domain name to your own domain name)

#!/bin/bash

/data_local/app/cron_shell/lets_encrypt/certbot-auto certonly --webroot -w /data_local/app/www -d yourdomaainname.com dev0.yourdomainname.com

chmod a+x get_cert.sh

STEP 4 - EXECUTE FOR FIRST TIME (GET THE ACTUAL CERTIFICATE)

cd /data_local/app/cron_shell/lets_encrypt ./get_cert.sh