The page give links to other databases accessible by the same GeneWeb service. There is no limit for the size of a base. Bigger databases will simply consume more memory. One only service is sufficient to take care of several bases. It is not necessary to launch as many services than there are base, and there is no need to stop and restart a service when a base is modified or when a new base is installed.
Some options allows to adjust parameters.
Technical appendix GeneWeb can work even if no Web server is installed. Nevertheless, if there is a standard Web server on the computer, it can be used in CGI mode. It is a program spending its time waiting that somebody sends it requests. The program displays permanently the trace of the requests. All the computing is done by the server computer.