Can I reuse layer setup files (LIFs) between different datasets?
Yes. The map server setup files use modular design with all layer information encapsulated in the layer’s LIF file. Once defined, the layer’s LIF file may be used in multiple datasets. For example, the sample datasets provided with the map server reuse the earth and grid layers. The Map Server setup files also support “INCLUDE=filename” directive that allows to share portions of the setup information between different layer LIF files.