Click on the photo on the UW home page for more information. This provides both speed and uninterrupted service. The systems would be more vulnerable to interruptions if a networked file server were used. Master copies of files and scripts used by the production servers are on the file server. Once a night all changes are sent out from the file server to the production servers.
Developers can also install individual changes on an as-needed basis.
Accordingly, master copies of the ftp data are stored on this file server and FTP access is provided by the ftp production servers. The development and evaluation environments are, by design, not visible to the general public. Within each environment there are several access trees that can present different information depending on the origin of the client. Any requests directed to the default HTTP port are automatically granted a particular level of access depending on the originating computer. The HTTP daemon has been enhanced to accommodate the different environments and access trees, as well as other features.