Apple Macintosh PowerBook 145 - Manual (Page 217)

Chapter 12: Using Your Computer on a Network 201
Preventing specific users or guests from accessing
your computer
To prevent all network access to your computer, you can turn file
sharing and program linking off, as described elsewhere in this
chapter.
1. Choose Control Panels from the Apple (K) menu and
open the Users & Groups icon.
2. To deny access to a specific user, open the user icon.
To deny access to guests, open the icon.
continues .