Check this recent post...
#1 How to: Install Let's Encrypt on Ubuntu Linux VPS to Create SSL Certificates Downloading and Installing Let's Encrypt 1. Update the server's packages apt-get update & sudo apt-get upgrade 2. Install the GIT package apt-get install git 3. Download a clone of Let's Encrypt from the GitHub...
Look at
@tchart comments in #3.
Setting up SSL is not that difficult - it's learning how to do it properly... then it's easy ( ha! )
The problem with the free ones is when you have to renew - like in 3 months...
I setup Let's Encrypt on one server I have (which worked) , then when it expired - I was lost - could not update it - try as I might following all instructions! DANG!!!
My site is still not secure....
I have a paid for SSL, the one you referred to above in post #7. It was a battle to config - with help from the experts.
My original VPS provider tried to screw me so I moved to another. I have not tried to use my paid SSL since.
Granted, we all need SSL on our sites - or potential clients (governments, hi profile businesses and smart people) won't consider us as ligit...