How do I change a SharePoint server web application to use https ?

Question

We have a SharePoint 2016 server using a url with http - for example http://servername.domain . We want to change to using https://servername.domain as the url. Whats the best way to do that ?

Answer 1

Hi @Greg Booth ,

You can enable HTTPS encryption in SharePoint Web Application using an SSL certificate.

SSL certificates provide secure connectivity between client-server. Setting up HTTPS in SharePointServer sites is a security addition. Generally, it’s a best practice to secure SharePoint Central Administration and External web applications with SSL (HTTPS access).

Create a Self-signed Certificate :

• If there is no valid certificate issued by CA you must create a self-signed certificate: 
• Launch IIS. In the Run dialog, type inetmgr and click OK. 
• When IIS opens, select the parent node and double-click Server Certificates.
• On the Server Certificates screen, click the “Create self-signed certificate” link in the Actions pane.
• In the Create Self-Signed Certificate dialog, specify a friendly name and then click OK.
• The new certificate will be listed on the Server Certificates screen.
• Right-click the Portal site on which you want to enable SSL and click “Edit Bindings”.
• Click the “Add” button. Select the Type as “https”. Provide the valid port number in “Port:”. Select the valid SSL certificate and click “OK”
• Make sure the new binding for HTTPS is added.
• SharePoint Central Administration -> Application Management -> Configure Alternate access mappings
• Select the portal by selecting “Change Alternate Access Mapping Collection”
• Click “Edit Public URLs"
• Provide the HTTPS URL in the Intranet zone. The format should be https://[Server Name with fully qualified domain name]:[Port number given for HTTPS]. Eg., https://xyz.com:31450 
• Execute IISRESET command in the command prompt. Render the Portal HTTPS URL in the browser.

For more information, please refer to:

https://social.technet.microsoft.com/wiki/contents/articles/34507.sharepoint-2013-convert-sharepoint-web-application-from-http-to-https.aspx

https://www.sharepointdiary.com/2012/03/configuring-ssl-certificates-in-sharepoint-2010.html

https://www.sharepointdiary.com/2017/08/how-to-change-sharepoint-web-application-from-http-to-https.html#:~:text=Click%20on%20%E2%80%9CConfigure%20alternate%20access,the%20Zone%20like%20%E2%80%9CIntranet%E2%80%9D.

Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.

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