Xfsinfo is a utility for displaying information about an X font server. It is used to examine the capabilities of a server, the predefined values for various parameters used in communicating between clients and the server, and the font catalogues and alternate servers that are available.
The following shows a sample produced by xfsinfo.
name of server: hansen:7100 version number: 1 vendor string: Font Server Prototype vendor release number: 17 maximum request size: 16384 longwords (65536 bytes) number of catalogues: 1 all Number of alternate servers: 2 #0 hansen:7101 #1 hansen:7102 number of extensions: 0