Introducing Let’s Encrypt
Let’s Encrypt is a free certificate authority that issues certificates for securing Internet sites.
The process is fully automated and instantaneous.
The advantage is to be able to pass your site in HTTPS free.
Installing a certificate under IIS
1. Download WACS which is a client that allows the generation of your certificates. The client must be running on the IIS server where the site is hosted.
4. Restart the website. From the IIS console, right click on the site and restart.
Your SSL certificate is generated and already operational. The script creates the link automatically with your site and IIS setting.
Site Configuration with SSL :
The certificate is valid for 3 months, so remember to renew it regularly.
Retex : I used this type of certificate for an Office 365 hybrid migration, the Microsoft servers request a certificate recognized by a certification authority. This solution made it possible to avoid the purchase of a certificate..