The font paths are hard-coded in Linux or UNIX versions of the ArcIMS Spatial Server. Place the font in the path corresponding to your operating system:
The FontInfo utility can be used to determine the fonts and corresponding font names accessible by the ArcIMS spatial server. It can be downloaded from FontInfo Utility downloads.
Fonts placed in any other directory will not be available to the ArcIMS Spatial Server.
If ArcIMS does not recognize the font, type 'xset fp rehash' at the command prompt to rebuild the font list. Restart the ArcIMS daemons and see if the font is recognized.