The name of the file that should be used for UNIX-domain socket communications.
The default is "etc/socket".
This directive is only available for use in the global
(interchange.cfg) configuration file,
and will affect all websites running under the Interchange installation.
It will not work in a website's local (catalog.cfg)
This directive is used to specify the name of the file that Interchange
should create and use for UNIX-domain socket communications.
The user ID running the Interchange instance must, of course,
have permission to create and write to the named file.