Zhiyong Li is a senior manager of SAS Platform Division and the chair of the Java Technology Board at SAS institute. He started coding in Java in 1995 as a Sun’s development staff. He worked at IBM and iBiomatics as lead architect and developer for several enterprises Java applications. He holds a Ph.D from Computer Science Department of Duke University. He has published many papers in AI, parallel computation and program languages. He has also published several patents. 
Tomcat is a widely popular lightweight application server. When securing Tomcat web applications, Valve, JAAS and Filter are used in various scenarios. The challenges for developers are when to use each of these methods and how to integrate them together if more than one method is chos...Aug. 14, 2011 06:15 AM EDT Reads: 7,611
Integrated Windows Authentication (IWA) provides a user-friendly interface for single sign-on. IWA uses ‘Simple and Protected GSSAPI Negotiation Mechanism’ (SPNEGO) to allow the initiators and acceptors to negotiate the underlying protocol to be used for authentication. In this article...
