How to use Letâs Encrypt on Windows with ACMESharp and letsencrypt-win-simple
Letâs Encrypt is a free, automated, and open certificate authority that provides SSL/TLS certificates for websites. To use Letâs Encrypt on Windows, you need a client software that can communicate with the Letâs Encrypt servers using the ACME protocol. In this article, we will show you how to use two popular ACME clients for Windows: ACMESharp and letsencrypt-win-simple.
ACMESharp is a .NET library and PowerShell module that allows you to manage certificates from Letâs Encrypt. You can install it from the PowerShell Gallery using the following command:
Install-Module -Name ACMESharp
After installing ACMESharp, you need to initialize it and register an account with Letâs Encrypt:
Next, you need to request a certificate for your domain name. You can use different methods to prove your ownership of the domain, such as HTTP challenge, DNS challenge, or TLS-SNI challenge. For example, to use the HTTP challenge, you need to create a file with a specific content in the webroot of your website and make it accessible from http://yourdomain.com/.well-known/acme-challenge/. You can use the following commands to do that:
Finally, you can import the PFX file to your web server and configure it to use HTTPS.
letsencrypt-win-simple is a simple ACME client for Windows that can automatically install certificates from Letâs Encrypt to IIS. You can download it from https://github.com/win-acme/win-acme/releases and run it as an administrator. It will ask you to enter an email address and accept the terms of service. Then it will scan your IIS sites and list them for you. You can choose which site you want to secure and press enter. The client will then request a certificate for your site and install it to IIS. It will also create a scheduled task to renew the certificate automatically every 60 days.
In this article, we showed you how to use Letâs Encrypt on Windows with ACMESharp and letsencrypt-win-simple. Both clients are easy to use and can help you secure your website with free SSL/TLS certificates. However, they have different features and limitations, so you should choose the one that suits your needs best. aa16f39245