You can configure that any clients that communicate with your server must supply a certificate. This sets up SSL links for
               peer-to-peer communication (as opposed to client/server communication) 
               	 
            
 
            	 
            To request or require a certificate from clients who communicate with your server: 
               	 
            
 
            	 
             
               		
               - Connect to ES Admin, for example by entering 
                  		  http://localhost:86 in your Web browser. 
                  		
               
- Select the enterprise server you want, such as ESDEMO. Stop it if it is started, and then click 
                  		  Edit. 
                  		
               
- Go to the 
                  		  Listeners page. 
                  		
               
- Select the HTTPS listener you want (if you can't see the one you want, set the 
                  		  Process filter to 
                  		  All), and click 
                  		  Edit 
                     		  . 
                  		
               
- Check 
                  		  Secure Sockets Layer. 
                  		
               
- Click 
                  		  SSL Options and then: 
                  		  
                   
                     			 
                     - Check the appropriate option to request or require client certificates. 
                        			 
                     
- Enter the CA root certificate of the CA who signed the client cerificate. 
                        			 
                     
 
If the CA who signed the client's certificate is not trusted, communication is prevented. If you want to trust the signing
               CA, you can add it to your trusted CAs by updating the relevant certificates options in your browser.