Create a classic-mode web application by using Windows PowerShell

Use the procedure in this section to create a new classic-mode SharePoint 2013 web application using Windows PowerShell.
To create a classic-mode web application by using Windows PowerShell

1. Verify that you have the following memberships:
   
   • securityadmin fixed server role on the SQL Server instance.
   • db_owner fixed database role on all databases that are to be updated.
   • Administrators group on the server on which you are running Windows PowerShell cmdlets.
   • You must read about_Execution_Policies.
2. From the Windows PowerShell command prompt, type the following:
   
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   New-SPWebApplication -Name <Name> 
   -ApplicationPool <ApplicationPool>
   -AuthenticationMethod <WindowsAuthType>
   -ApplicationPoolAccount <ApplicationPoolAccount>
   -Port <Port> -URL <URL>
   

   Where:
   
   • <Name> is the name of the new web application that uses classic-mode authentication.
   • <ApplicationPool> is the name of the application pool.
   • <WindowsAuthType> is either “NTLM” or “Kerberos”. Kerberos is recommended.
   • <ApplicationPoolAccount> is the user account that this application pool will run as.
   • <Port> is the port on which the web application will be created in IIS.
   • <URL> is the public URL for the web application.

   Note:
   For more information, see New-SPWebApplication.

   Note:
   After you successfully create the web application, when you open the Central Administration page, you see a health rule warning that indicates that one or more web applications is enabled with classic authentication mode. This is a reflection of our recommendation to use claims-based authentication instead of classic mode authentication.