Often architects are faced with situations where they have to decide on open source and commercially available technologies.
Spring (lightweight application container) and Hibernate (persistence framework) are popular opensource projects that claims to even be a substitute for J2EE container. Here is a good article on how to get the most of these open source technologies along with popular comercial application server from IBM – WebSphere.
If you run Virtual Network Editor in Vmware Server on Windows 7, you will notice that the OK button is disabled. This tool needs to be “Run As Administrator” for the OK button to be enabled and make any changes to the virtual networking configuration.
Cloud Computing is all the rage these days. Ever wanted to try building your own cloud and check it out. Ubuntu Distribution 9.10 now includes Ubuntu Enterprise Cloud that you can download and build your own cloud that is compatible with Amazon EC2 platform and images. It uses an open source implementation for cloud infrastructure that is available from http://open.eucalyptus.com/.
Ubuntu Enterprise Cloud distribution is available from http://www.ubuntu.com/getubuntu/download-server
To deploy a minimum cloud infrastructure you will need two systems. I am in the process of trying this out using two vmware images. Stay tuned for more information as I report my results.