The first directive we need to use is a global directive that tells Interchange where the new catalog is, called Catalog. The Catalog directive has the following format:
Catalog name catalog_base_directory link_url_path
Open interchange.cfg in the Interchange software directory. Go near the top of the file, right below the other Catalog directives, and add this line:
Catalog tutorial /var/lib/interchange/tutorial /cgi-bin/tutorial
Save the file.