Configuring SSL in SharePoint

1. Get the SSL Certificate ( Verisign  DigiCert  Godaddy)
2. Modify the Binding of the web application in IIS
3. Change the alternate access mapping(AAM)

Central Administration URL in registry

HKLM\SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\12.0\WSS

HTTP Error 503. The service is unavailable in SharePoint

This error normally occurs whenever the password for application pool identity account is changed or application pools are in stopped state. This error may appear temporarily when you deploy solutions. Change the password for the Identity account in IIS.