
266 Doug Nebert and Qunying Huang
federal geospatial applications were designed and deployed as shown in
Figure15.4. The basic images are of two types of OS—Linux (CentOS5.5)
and the Windows 2008 server. The Windows images are directly from
Microsoft with a license passing through in the form of additional per-hour
fees. After the basic image has been built from scratch, the most common
software packages are installed on both Linux and Window images as base
platforms, such as Java, Apache Tomcat, and MySQL.
Nationally, the base platforms could be further customized as specialized
platforms for different domain applications. Those speciali