A system configuration manager provides a graphical user interface that allows a system administrator to easily administer configuration settings for different computer systems and platforms on a computer network. The system configuration manager allows identifying one system configuration or a settings profile as a "model system". Once the model system is defined, other computer systems may be compared to the model system. Differences between the selected computer systems and the model system are then displayed, and the system configuration manager may be used to update the selected computer systems with configuration settings specified in the model system. Cross-platform support is provided by a configuration mapping mechanism that maps configuration information from one platform to corresponding configuration information for another platform. The configuration mapping mechanism effectively hides the differences between platforms by translating the configuration information from a selected platform to corresponding configuration information for the model system.