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