Question : How to request client certificate to perform two way authentication

I'm developing a java web service in apache-tomcat and it need to perform the two way authentication. Thus, we need to the web service client to provide the client certificate info in order to authenticate the client. So, would like to know what should we do to get this thing done. Do we need to configure anything in apache or tomcat? if yes, then what parameter to configure?

Answer : How to request client certificate to perform two way authentication

This site explains the whole process (including creation of CA & server certificates.).
http://emo.sourceforge.net/cert-login-howto.html