set-name
The set-name variable is used only for reference only. Usually
you will want to put in the fully-qualifed name (i.e. cse.unl.edu)
that corresponds to the server-address
here. It serves as the name of this particular domain's configuration
set.
Also, for the other variables in the domain configuration file, you
can use the "@SETNAME@" cookie in an option setting and have it
replaced with the value you put for set-name.
Examples:
set-name=ftp.fubar.com
set-name=defaultdomain