A number of address ranges have been reserved for testing and for non-connected networks; we use one of these for the book. If you don't have an address yet, feel free to use one of these to start with. They include one class A (large) network, 10.*.*.*, and 254 class C (smaller) networks, 192.168.1.* through to 192.168.254.*. In this book we use one of the latter, 192.168.236.*. The domain
example.com is also reserved for unconnected networks, explanatory examples, and books.
If you're actually connecting to the Internet, you'll need to get a real network and a domain name, probably through the same company that provides your connection.
