Securing a Web site using a Free LetsEncrypt TLS Certificate in Plesk

Since we've upgraded your VPS to Plesk Obsidian all our domains are secured with a free LetsEncrypt certificate.
These certificates are automatically renewed every 3 month by Plesk, but occasionally one need to change to add one component, for example when adding aliases or subdomains.

Customers can manage their own LetsEncrypt TLS Certificate in Plesk:

• Login with your Plesk Admin username at the Plesk Admin page for your domain. it looks like : https://psa1234.his.com:8443/
  (This information has been provided when the account was created.)

• Under Websites & Domains

• if you have multiple domains, Select the domain Subscription you want to work with.

Step 1: Generate the Secure Certificate

• In the Domain Dashboard:

• Scroll down to Security

• Click on SSL/TLS Certificates
  it will display the current LetsEncrypt certificate used by the domain and the components it secures.
  -- Make sure the correct contact email address is listed- by default it is the subscription’s owner’s.

• Click on the button Reissue Certificate

• Under Install a free basic certificate provided by Let's Encrypt: Click Install

• Fill-in the required fields:
  -- Secure the domain name
  -- if hosting a web site in Plesk: Include www as the alternative domain name for the SSL certificate if this is the preferred domain you are using for the web site.
  -- If hosting Mailboxes for the Domain in Plesk, also add webmail.

• Assign the certificate to the mail domain.

• Click on Get It free to generate the new Certificate.

• Click Install.

When the certificate is generated, you will see a banner on top of the page saying “Information: Let's Encrypt SSL certificate was successfully installed on the domain.com.

Step 2: Configure the Domain to use the Secure Certificate

This part should already be done. Review the Hosting settings:

• Under Website&Domain > Hosting and DNS > Hosting
• Scroll down to the Security part.
• Make sure the “SSL support” is checked and shows the Lets Encrypt certificate for the domain in the Certificate field.
  If this is not the case:
  Check “SSL support” and select the correct certificate if needed and scroll down to click OK.

Important: At this point you can test your web site pages and make sure they work in https.
If you are using Wordpress, see this article: Switching a WordPress site to HTTPS

Step3: Redirect all web traffic for the domain to HTTPS

• Under Hosting Settings > Under Security section click on Permanent SEO-safe 301 redirect from HTTP to HTTPS.
• Click OK to apply any changes to the domain Hosting & SSL settings.