Setting SSL (Secure Socket Layer) in Tomcat is often a requirement, especially while developing secure web applications, which requires access over HTTPS protocol. Since the Tomcat web server doesn't provide SSL settings by default, you need to know how to configure SSL in Tomcat, and even worse it varies between different tomcat versions. for Example SSL setup which works on tomcat 6, doesn't work as it is in tomcat 7. In this article, we will see, how to configure tomcat for HTTPS in both tomcat 6 and 7. For those programmers who are not very familiar with SSL and HTTPS here is a quick overview of SSL, certificates and HTTPS, and I suggest reading that article to get a better understanding of How SSL works and How websites are accessed securely over the internet.