SharePoint 2016: Extend A Web Application

Introduction

In some scenarios, you may need to share the same content to different types of users [Internal / External] through different URLs or different authentication types. In this case, you will need to extend your SharePoint web application.

Before we begin to explain How to extend a web application, you should first be aware of the following.

• When the web application is extended, a different Web Application and IIS are created.
• The main Web Application and the extended one will share the same Content Database.
• You can extend the web application to change the port number. Meanwhile, you can extend the web application to port 80 in case you use Host Header. 
• Extending web application is used for extranet deployments in which different users access to the same content through different domains and different authentication type. Below, I will show the simple steps to extend a SharePoint Web Application.

Steps

• Open Central Administration > Application Management > Manage web applications.
• Select the source web application and from the above ribbon click on Extend button.

• The Extend Web Application dialog will be shown. 
• Fill the required information based on your requirements like the port number, change the authentication type ...etc.

Applies to

• SharePoint 2016.
• SharePoint 2013.
• SharePoint 2010

Conclusion

In this article, we have discussed How can you extend a web application in SharePoint 2016?