Sunday, January 25, 2015

Disable Loopback a Best Practice for SharePoint 2013

When you install SharePoint, there is an issue using Integrated Authentication for a Web site that is mapped to a local loopback address. Your method of remediation depends on whether the environment is production or test.


  1. Set the DisableStrictNameChecking registry entry to 1.
  2. Click Start, click Run, type regedit, and then click OK.
  3. In Registry Editor, locate and then click the following registry key:

  4. Right-click MSV1_0, point to New, and then click Multi-String Value.
  5. Type BackConnectionHostNames, and then press ENTER.
  6. Right-click BackConnectionHostNames, and then click Modify.
  7. In the Value data box, type the host name or the host names for the sites that are on the local computer, and then click OK. Enter hostnames as on a separate line for each site in your farm.
  8. Quit Registry Editor, and then restart the IISAdmin service.


This method can expose a security risk to your SharePoint farm, so be sure to only do this method in a test or development environment.

Open PowerShell and Run as Administrator. Type in the cmdlet:

New-ItemProperty HKLM:\System\CurrentControlSet\Control\Lsa -Name "DisableLoopbackCheck"  -value "1" -PropertyType dword

Reboot the server.


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