FreeCA Certs

Here is some info for free CA certificates:

Certificate Authority Wiki

I LOVE & use Let's Encrypt, Google's free SSL certificate authority and server and it's certificate renewal utility Certbot! Here's an example of the command to use to renew your SSL certificate for use on an NginX webserver:

[root@wiki.linuxjamie.com:~]# certbot --nginx --redirect --agree-tos --no-eff-email -d wiki.linuxjamie.com -m jamie@linuxjamie.com