Selecting the port and interface where Grok listens
for Developer, Server Administrators
By default, your Grok instance will listen for any incoming TCP connection destined for port 8080 on your machine. Here's how to choose a different port, or to select a particular interface on which it should accept connections.
Navigating To Transient Objects Tutorial
Thanks to the magic of this database, your web apps can create Python objects that are automatically saved to disk and are available every time your application runs. In particular, every grok.Model and grok.Container object you generate can be written safely to your application's Data.fs file. But sometimes you need to create objects that do not persist in the ZODB, wonderful though it is.