title: how to open link of one web application (server 1) from another web applicaton (server2). Sigle sign on Problem
body: <p>Guys,
   I have made two web application, both application deployed on differnent server with database. one have SQL and other Oracle.</p>
  
  <p>server 1: Web application 1/SQL Database.
  Server 2: Web Application 2/Oracle Database.</p>
  
  <p>I have given link of Web application 2 on web Application 1. its means single sign on logic. I have login in web application 1 and click link of web application 2, when I click on link I want to authenticate to user in oracle databse (on server 2) if user is valid or not.</p>
  
  <p>Please help how could do this.</p>
  
  <p>its urgent.</p>