OpenSiteSearch is a java-based Z39.50 portal system. Its primary use is for libraries to build search interfaces to one or more Z39.50 targets, such as library catalogue Z39.50 servers, vendor database/ejournal Z39.50 servers, or local digital collections.
OpenSiteSearch also includes a component for building databases of digital content that are then searchable by the OpenSiteSearch search interface.
If you have any questions about installing or configuring OpenSiteSearch, please join the OpenSiteSearch-main mailing list and post your question; I am sure that a member of the community will be willing to help out!