Installing and configuring workflow for SharePoint Server 2013

Step 1: Configure the Workflow on following link steps.
http://letrasandnumeros.com/2013/01/17/installing-and-configuring-workflow-for-sharepoint-server-2013-step-by-step/
http://sharepoint-community.net/profiles/blogs/configuring-sharepoint-2013-to-support-workflow-management

Sometime following error occurred in the  Workflow Configuration:
Error 1:
Register-SPWorkflowService : The root of the certificate chain is not a
Trusted root authority
Solution:
Change the port no 12290 to 12291 and HTTPS to HTTP

http://social.msdn.microsoft.com/Forums/sharepoint/en-US/d19af7e0-6427-42b1-a59e-82e1ac0bd201/getting-certification-error-when-trying-to-register-workflow-service-for-my-site-in-sharepoint-2013?forum=sharepointcustomization

Error 2:
Register-SPWorkflowService : The underlying connection was closed: An
unexpected error occurred on a send. Client ActivityId :
Solution:
http://sharepoint1on1.blogspot.in/2012/10/sp2013-register-spworkflowservice-error.html

Error 3:
Register-SPWorkflowService : The remote server returned an error: (401)
Unauthorized.
Solution:
Turn on "Anonymous Authentication" from workflow server IIS site settings.